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Kha R, Kapucu Y, Indrakumar M, Burlutsky G, Thiagalingam A, Kovoor P, Mitchell P, Liew G. Diabetic retinopathy further increases risk of cardiovascular disease mortality in a high-risk cohort. Sci Rep 2025; 15:4811. [PMID: 39924501 PMCID: PMC11808117 DOI: 10.1038/s41598-025-86559-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2024] [Accepted: 01/13/2025] [Indexed: 02/11/2025] Open
Abstract
Diabetic retinopathy (DR) is the most common microvascular complication of diabetes and is strongly linked with systemic vascular comorbidities. This study investigated if DR predicts risk of cardiovascular disease (CVD) mortality in a high CVD risk cohort. This was a prospective cohort study of 1582 adult participants who presented to a tertiary Australian hospital for evaluation of acute coronary syndrome by coronary angiography. Participants were concurrently examined for DR from mydriatic fundus photographs which were mask-graded according to International Clinical Classification categories of no DR, mild non-proliferative DR, moderate-to-severe NPDR, and proliferative DR. Coronary artery disease was graded from coronary angiograms using the Gensini score. CVD mortality follow-up was assessed 9 years after baseline examination using linkage with the Australian National Death Index. At baseline, 355 (22.4%) participants had any DR. There were 181 (11.4%) fatal CVD events after 9-years follow-up. After controlling for age, sex, BMI, diabetes, total cholesterol, smoking status, hypertension, previous myocardial infarction and stroke, any DR was associated with 1.8-fold higher risk of CVD mortality (Hazard Ratio [HR] 1.84, 95% Confidence Interval [95% CI: 1.30-2.61]). Mild non-proliferative DR (1.85 [1.26-2.72]) and proliferative DR (5.27 [2.32-12.00]) were associated with greater CVD mortality risk. Further adjustment for coronary artery disease using Gensini scores and excluding patients without diabetes had minimal impact on the association. The increased risk of CVD mortality was significant in both men (2.25 [1.60-3.19]) and women (2.38 [1.24-4.58]) with any DR. In individuals with high CVD risk, presence of DR independently predicts increased CVD mortality. This likely reflects additional contribution of microvascular disease to CVD mortality. Individuals with DR may benefit from a comprehensive cardiovascular risk assessment, lifestyle changes, more intensive cardiovascular management and follow-up to minimise risk of death from CVD events.
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Affiliation(s)
- Richard Kha
- Centre for Vision Research, Westmead Institute for Medical Research, Westmead, NSW, 2145, Australia
| | - Yasemin Kapucu
- Centre for Vision Research, Westmead Institute for Medical Research, Westmead, NSW, 2145, Australia
| | - Mayuri Indrakumar
- Centre for Vision Research, Westmead Institute for Medical Research, Westmead, NSW, 2145, Australia
| | - George Burlutsky
- Centre for Vision Research, Westmead Institute for Medical Research, Westmead, NSW, 2145, Australia
| | | | - Pramesh Kovoor
- Department of Cardiology, Westmead Hospital, Westmead, NSW, Australia
| | - Paul Mitchell
- Centre for Vision Research, Westmead Institute for Medical Research, Westmead, NSW, 2145, Australia
| | - Gerald Liew
- Centre for Vision Research, Westmead Institute for Medical Research, Westmead, NSW, 2145, Australia.
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Naik B, Pandey A, Dasgupta R, Shivaprasad C. Cardiac Autonomic Neuropathy in Diabetic Peripheral Neuropathy. Cureus 2024; 16:e67777. [PMID: 39323701 PMCID: PMC11422742 DOI: 10.7759/cureus.67777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/25/2024] [Indexed: 09/27/2024] Open
Abstract
Background Cardiac autonomic neuropathy (CAN) is the most underdiagnosed consequence of diabetes because standard hospital settings do not provide consistent diagnostic criteria or testing resources. It is still unclear how diabetic peripheral neuropathy (DPN) and CAN are related. Therefore, this study aimed to determine the prevalence of CAN in individuals with type 2 diabetes mellitus who had isolated DPN without other microvascular or macrovascular complications. Methodology A total of 35 type 2 diabetes mellitus patients with isolated DPN (group 1) and an equal number of sex- and age-matched patients without DPN (group 2) underwent CAN testing. Results were compared between the two groups. Results A significantly higher prevalence of isolated parasympathetic (28.57 vs. 11.42%), isolated sympathetic (22.85 vs. 8.57%), and combined autonomic dysfunction (37.14 vs. 2.85%) was found in the neuropathic group compared to the non-neuropathic group. Group 1 exhibited more abnormal parasympathetic nervous system test results and increased diastolic pressure during sustained handgrip compared to group 2 (all p-values <0.05). Conclusions A significantly higher prevalence of cardiac autonomic dysfunction is seen in patients with DPN without other microvascular or macrovascular complications, irrespective of age, sex, or duration of diabetes mellitus. Patients with a higher body mass index were found to have significantly increased cardiac autonomic dysfunction.
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Affiliation(s)
- Balaji Naik
- Diabetes and Endocrinology, Sapthagiri Institute of Medical Sciences and Research Centre, Bengaluru, IND
| | - Abhishek Pandey
- Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, IND
- Diabetes and Endocrinology, Sapthagiri Institute of Medical Sciences and Research Centre, Bengaluru, IND
| | - Riddhi Dasgupta
- Diabetes and Endocrinology, Sapthagiri Institute of Medical Sciences and Research Centre, Bengaluru, IND
| | - Channabasappa Shivaprasad
- Diabetes and Endocrinology, Sapthagiri Institute of Medical Sciences and Research Centre, Bengaluru, IND
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Hsieh DY, Lai YR, Huang CC, Chen YN, Wu SY, Chiu WC, Cheng BC, Lin TY, Chiang HC, Lu CH. Baroreflex Sensitivity as a Surrogate Biomarker for Concurrently Assessing the Severity of Arterial Stiffness and Cardiovascular Autonomic Neuropathy in Individuals with Type 2 Diabetes. J Pers Med 2024; 14:491. [PMID: 38793073 PMCID: PMC11122369 DOI: 10.3390/jpm14050491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 04/22/2024] [Accepted: 04/29/2024] [Indexed: 05/26/2024] Open
Abstract
This study aimed to investigate whether baroreflex sensitivity (BRS) could serve as a reliable metric for assessing cardiovascular autonomic neuropathy (CAN) and concurrently act as a surrogate biomarker for evaluating the severity of arterial stiffness and CAN in individuals diagnosed with type 2 diabetes mellitus (T2DM). Participants underwent brachial-ankle pulse wave velocity (baPWV) as well as autonomic function evaluations encompassing the Sudoscan-based modified composite autonomic scoring scale (CASS), baroreflex sensitivity, and heart rate variability in time domains and frequency domains. Linear regression analysis was performed to evaluate the influence of independent variables on baPWV and modified CASS. Participants with higher baPWV values were older, with longer diabetes duration, lower body weight, body mass index, waist circumference, elevated systolic and diastolic blood pressure, and mean arterial blood pressure. They also exhibited a higher prevalence of retinopathy as the underlying disease and reduced estimated glomerular filtration rate. Multiple linear regression analysis revealed that age and BRS were significantly associated with baPWV while diabetes duration, UACR, and BRS were significantly associated with modified CASS. Our study confirms the significant association of BRS with baPWV and modified CASS in T2DM, highlighting its pivotal role in linking microvascular and macrovascular complications. This supports BRS as a surrogate marker for assessing both the severity of arterial stiffness and cardiovascular autonomic neuropathy in T2DM, enabling the early identification of complications.
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Affiliation(s)
- Dong-Yi Hsieh
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung City 83301, Taiwan; (D.-Y.H.); (Y.-R.L.); (H.-C.C.)
| | - Yun-Ru Lai
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung City 83301, Taiwan; (D.-Y.H.); (Y.-R.L.); (H.-C.C.)
- Department of Hyperbaric Oxygen Therapy Center, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung City 83301, Taiwan
| | - Chih-Cheng Huang
- Department of Neurology, Chi-Mei Medical Center, Tainan City 73657, Taiwan;
| | - Yung-Nien Chen
- Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung City 83301, Taiwan; (Y.-N.C.); (W.-C.C.); (B.-C.C.)
| | - Szu-Ying Wu
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung City 83301, Taiwan;
| | - Wen-Chan Chiu
- Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung City 83301, Taiwan; (Y.-N.C.); (W.-C.C.); (B.-C.C.)
| | - Ben-Chung Cheng
- Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung City 83301, Taiwan; (Y.-N.C.); (W.-C.C.); (B.-C.C.)
| | - Ting-Yin Lin
- Department of Nursing, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung City 83301, Taiwan;
| | - Hui-Ching Chiang
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung City 83301, Taiwan; (D.-Y.H.); (Y.-R.L.); (H.-C.C.)
| | - Cheng-Hsien Lu
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung City 83301, Taiwan; (D.-Y.H.); (Y.-R.L.); (H.-C.C.)
- Department of Center for Shockwave Medicine and Tissue Engineering, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung City 83301, Taiwan
- Department of Biological Science, National Sun Yat-Sen University, Kaohsiung City 80424, Taiwan
- Department of Neurology, Xiamen Chang Gung Memorial Hospital, Xiamen 361126, China
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Attarian S. Innovation in characterizing cardiac autonomic neuropathy using supervised learning. Clin Neurophysiol 2023; 154:198-199. [PMID: 37517953 DOI: 10.1016/j.clinph.2023.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 07/04/2023] [Indexed: 08/01/2023]
Affiliation(s)
- Shahram Attarian
- Reference Center for Neuromuscular Disorders and ALS, Timone University Hospital, Aix-Marseille University, ERN-NMD, 264 rue Saint Pierre, Marseille, Cedex 05 13385, France; FILNEMUS, European Reference Network of Rare Diseases (ERN), France; Aix Marseille Université - Inserm UMR 1251, Medical Genetics and Functional Genomics, Marseille, France.
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Tsilingiris D, Schimpfle L, von Rauchhaupt E, Sulaj A, Seebauer L, Bartl H, Herzig S, Szendroedi J, Kopf S, Kender Z. Dysmetabolism-related Early Sensory Deficits and Their Relationship With Peripheral Neuropathy Development. J Clin Endocrinol Metab 2023; 108:e979-e988. [PMID: 37139855 PMCID: PMC10505541 DOI: 10.1210/clinem/dgad248] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 04/03/2023] [Accepted: 05/02/2023] [Indexed: 05/05/2023]
Abstract
AIM To investigate the association of early peripheral sensory dysfunction (EPSD) identified through quantitative sensory testing (QST) with factors related to a dysmetabolic status in individuals with and without type 2 diabetes (T2DM) without peripheral neuropathy (PN), and the impact of those factors on PN development. METHODS A total of 225 individuals (117 and 108 without and with T2DM, respectively) without PN based on clinical and electrophysiological criteria were analyzed. Comparative analysis was conducted between those identified as "healthy" and those with EPSD based on a standardized QST protocol. A total of 196 were followed-up over a mean of 2.64 years for PN occurrence. RESULTS Among those without T2DM, apart from male sex, height, and higher fat and lower lean mass, only higher insulin resistance (IR; homeostatic model assessment for IR: odds ratio [OR], 1.70; P = .009; McAuley index OR, 0.62, P = .008), was independently associated with EPSD. In T2DM, metabolic syndrome (OR, 18.32; P < .001) and skin advanced glycation end-products (AGEs; OR, 5.66; P = .003) were independent predictors of EPSD. In longitudinal analysis, T2DM (hazard ratio [HR], 3.32 vs no diabetes mellitus; P < .001), EPSD (adjusted HR, 1.88 vs healthy; P = .049 adjusted for diabetes mellitus and sex), higher IR and AGEs predicted PN development. Among the 3 EPSD-associated sensory phenotypes, "sensory loss" was most strongly associated with PN development (adjusted HR, 4.35; P = .011). CONCLUSION We demonstrate for the first time the utility of a standardized QST-based approach in identifying early sensory deficits in individuals with and without T2DM. These are associated with a dysmetabolic status signified by IR markers, metabolic syndrome, and higher AGEs, which in turn are shown to influence PN development.
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Affiliation(s)
- Dimitrios Tsilingiris
- Department for Endocrinology, Diabetology, Metabolic Diseases and Clinical Chemistry, University Hospital Heidelberg, 69120 Heidelberg, Germany
- German Center for Diabetes Research (DZD), 85764 Munich-Neuherberg, Germany
| | - Lukas Schimpfle
- Department for Endocrinology, Diabetology, Metabolic Diseases and Clinical Chemistry, University Hospital Heidelberg, 69120 Heidelberg, Germany
| | - Ekaterina von Rauchhaupt
- Department for Endocrinology, Diabetology, Metabolic Diseases and Clinical Chemistry, University Hospital Heidelberg, 69120 Heidelberg, Germany
- German Center for Diabetes Research (DZD), 85764 Munich-Neuherberg, Germany
| | - Alba Sulaj
- Department for Endocrinology, Diabetology, Metabolic Diseases and Clinical Chemistry, University Hospital Heidelberg, 69120 Heidelberg, Germany
- German Center for Diabetes Research (DZD), 85764 Munich-Neuherberg, Germany
| | - Lukas Seebauer
- Department for Endocrinology, Diabetology, Metabolic Diseases and Clinical Chemistry, University Hospital Heidelberg, 69120 Heidelberg, Germany
| | - Hannelore Bartl
- Department of General, Visceral and Transplant Surgery, University of Heidelberg, 69120 Heidelberg, Germany
| | - Stephan Herzig
- German Center for Diabetes Research (DZD), 85764 Munich-Neuherberg, Germany
- Joint Heidelberg-IDC Translational Diabetes Program, Helmholtz Center Munich, 85764 Neuherberg, Germany
- Helmholtz Center Munich, Institute for Diabetes and Cancer, 85764 Munich-Neuherberg, Germany
| | - Julia Szendroedi
- Department for Endocrinology, Diabetology, Metabolic Diseases and Clinical Chemistry, University Hospital Heidelberg, 69120 Heidelberg, Germany
- German Center for Diabetes Research (DZD), 85764 Munich-Neuherberg, Germany
- Joint Heidelberg-IDC Translational Diabetes Program, Helmholtz Center Munich, 85764 Neuherberg, Germany
| | - Stefan Kopf
- Department for Endocrinology, Diabetology, Metabolic Diseases and Clinical Chemistry, University Hospital Heidelberg, 69120 Heidelberg, Germany
- German Center for Diabetes Research (DZD), 85764 Munich-Neuherberg, Germany
| | - Zoltan Kender
- Department for Endocrinology, Diabetology, Metabolic Diseases and Clinical Chemistry, University Hospital Heidelberg, 69120 Heidelberg, Germany
- German Center for Diabetes Research (DZD), 85764 Munich-Neuherberg, Germany
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Peters E, Itani M, Kristensen AG, Terkelsen AJ, Krøigård T, Tankisi H, Jensen TS, Finnerup NB, Gylfadottir SS. Cardiovascular autonomic neuropathy in patients with type 2 diabetes with and without sensorimotor polyneuropathy. J Peripher Nerv Syst 2023; 28:450-459. [PMID: 37449440 DOI: 10.1111/jns.12580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 07/07/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND AND AIMS Cardiovascular autonomic neuropathy (CAN) in patients with diabetes is associated with poor prognosis. We aimed to assess signs of CAN and autonomic symptoms and to investigate the impact of sensorimotor neuropathy on CAN by examining type 2 diabetes patients with (DPN [distal sensorimotor polyneuropathy]) and without distal sensorimotor polyneuropathy (noDPN) and healthy controls (HC). Secondarily, we aimed to describe the characteristics of patients with CAN. METHODS A population of 374 subjects from a previously described cohort of the Danish Centre for Strategic Research in Type 2 Diabetes (DD2) were included. Subjects were examined with the Vagus™ device for the diagnosis of CAN, where two or more abnormal cardiovascular autonomic reflex tests indicate definite CAN. Autonomic symptoms were assessed with Composite Autonomic Symptom Score 31 (COMPASS 31) questionnaire. DPN was defined according to the Toronto consensus panel definition. RESULTS Definite CAN was present in 22% with DPN, 7% without DPN and 3% of HC, and 91% of patients with definite CAN had DPN. Patients with DPN and definite CAN reported higher COMPASS 31 scores compared to patients with noDPN (20.0 vs. 8.3, p < 0.001) and no CAN (22.1 vs. 12.3, p = 0.01). CAN was associated with HbA1c and age in a multivariate logistic regression analysis but was not associated with IEFND or triglycerides. INTERPRETATION One in five patients with DPN have CAN and specific CAN characteristics may help identify patients at risk for developing this severe diabetic complication. Autonomic symptoms were strongly associated with having both DPN and CAN, but too unspecific for diagnosing CAN.
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Affiliation(s)
- Emil Peters
- Danish Pain Research Center, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Mustapha Itani
- Department of Neurology, Odense University Hospital, Odense, Denmark
| | - Alexander G Kristensen
- Danish Pain Research Center, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark
| | - Astrid Juhl Terkelsen
- Danish Pain Research Center, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Neurology, Aarhus University Hospital, Aarhus, Denmark
| | - Thomas Krøigård
- Department of Neurology, Odense University Hospital, Odense, Denmark
| | - Hatice Tankisi
- Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Troels S Jensen
- Danish Pain Research Center, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Nanna B Finnerup
- Danish Pain Research Center, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Neurology, Aarhus University Hospital, Aarhus, Denmark
| | - Sandra Sif Gylfadottir
- Danish Pain Research Center, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Neurology, Aarhus University Hospital, Aarhus, Denmark
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Arendt Nielsen T, Lundbye-Christensen S, Krasimirova Dimitrova Y, Riahi S, Brock B, Mohr Drewes A, Brock C. Adynamic response to cold pain reflects dysautonomia in type 1 diabetes and polyneuropathy. Sci Rep 2023; 13:11318. [PMID: 37443134 PMCID: PMC10344906 DOI: 10.1038/s41598-023-37617-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 06/24/2023] [Indexed: 07/15/2023] Open
Abstract
Cardiac autonomic neuropathy (CAN), widely assessed by heart rate variability (HRV), is a common complication of long-term diabetes. We hypothesized that HRV dynamics during tonic cold pain in individuals with type 1 diabetes mellitus (T1DM) could potentially demask CAN. Forty-eight individuals with long-term T1DM and distal symmetrical polyneuropathy and 21 healthy controls were included. HRV measures were retrieved from 24-h electrocardiograms. Moreover, ultra-short-term HRV recordings were used to assess the dynamic response to the immersion of the hand into 2 °C cold water for 120 s. Compared to healthy, the T1DM group had expectedly lower 24-h HRV measures for most components (p < 0.01), indicating dysautonomia. In the T1DM group, exposure to cold pain caused diminished sympathetic (p < 0.001) and adynamic parasympathetic (p < 0.01) HRV responses. Furthermore, compared to healthy, cold pain exposure caused lower parasympathetic (RMSSD: 4% vs. 20%; p = 0.002) and sympathetic responses (LF: 11% vs. 73%; p = 0.044) in the T1MD group. QRISK3-scores are negatively correlated with HRV measures in 24-h and ultra-short-term recordings. In T1DM, an attenuated sympathovagal response was shown as convincingly adynamic parasympathetic responses and diminished sympathetic adaptability, causing chronometric heart rhythm and rigid neurocardiac regulation threatening homeostasis. The findings associate with an increased risk of cardiovascular disease, emphasizing clinical relevance.
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Affiliation(s)
- Thomas Arendt Nielsen
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
- Department of Ophthalmology, Aalborg University Hospital, Aalborg, Denmark
- Department of Gastroenterology and Hepatology, Mech-Sense, Aalborg University Hospital, Aalborg, Denmark
| | - Søren Lundbye-Christensen
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
- Unit of Clinical Biostatistics, Aalborg University Hospital, Aalborg, Denmark
| | | | - Sam Riahi
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
| | - Birgitte Brock
- Steno Diabetes Center Copenhagen, Region Hovedstaden, Gentofte, Denmark
| | - Asbjørn Mohr Drewes
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
- Department of Gastroenterology and Hepatology, Mech-Sense, Aalborg University Hospital, Aalborg, Denmark
- Steno Diabetes Center North Denmark, Aalborg, Denmark
| | - Christina Brock
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.
- Department of Gastroenterology and Hepatology, Mech-Sense, Aalborg University Hospital, Aalborg, Denmark.
- Steno Diabetes Center North Denmark, Aalborg, Denmark.
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Jeyaseeli A, R G, Mathivanan D, Prabagaran A. Assessment of Triglyceride Glucose Index in Type 2 Diabetes Mellitus Patients With and Without Cardiac Autonomic Neuropathy. Cureus 2023; 15:e42541. [PMID: 37533622 PMCID: PMC10393284 DOI: 10.7759/cureus.42541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/26/2023] [Indexed: 08/04/2023] Open
Abstract
Background Cardiac autonomic neuropathy (CAN) is a major complication of type 2 diabetes mellitus (T2DM). Hyperglycaemia and hypertriglyceridemia are known risk factors in the development of CAN with T2DM. The triglyceride glucose (TyG) index is calculated using both the fasting blood glucose (FBG) and fasting triglyceride levels (FTG). There is a paucity of literature revealing a direct relationship between the TyG index and CAN in T2DM patients of the south Indian population. Objective To assess the TyG index levels in T2DM with and without CAN. Methods A cross-sectional study was performed, involving 100 T2DM patients (58 males and 42 females) aged between 30 and 60 years, who attended medicine OPD, Sri Venkateswaraa Medical College, Hospital and Research Centre (SVMCH & RC) during the study period. Age, duration of illness, height, weight, waist circumference (WC), hip circumference (HC), body mass index (BMI), systolic blood pressure (SBP) and diastolic blood pressure (DBP) were measured. Glycated hemoglobin (HbA1C) and lipid profile values were taken from patients' recent medical records. Ewing autonomic function tests were used to diagnose CAN, which included heart rate response to standing, heart rate response to deep breathing, heart rate response to Valsalva maneuver, blood pressure response to standing and blood pressure response to isometric handgrip. FBG and FTG were measured and the TyG index was calculated from these parameters. Statistical Product and Service Solutions (SPSS) (IBM SPSS Statistics for Windows, Version 20.0, Armonk, NY) was used for the statistical analysis and a 'P' value < 0.05 was considered statistically significant. Results In our study, out of 100 T2DM patients, 42 patients were diagnosed with CAN. The mean levels of TyG Index, HbA1C, FBG, FTG, BMI and WC were significantly (p<0.05) higher in T2DM patients with CAN when compared to T2DM without CAN. We couldn't find any significant difference (p<0.05) in age, duration of illness, blood pressure and lipid profile parameters between the groups. Conclusion We found that abdominal obesity, hyperglycemia, and hypertriglyceridemia are the risk factors for developing CAN in T2DM patients. Our study results also showed that the TyG index can be used to predict CAN in T2DM patients.
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Affiliation(s)
- Angeline Jeyaseeli
- Physiology, Sri Venkateswaraa Medical College Hospital and Research Centre, Puducherry, IND
| | - Ganesan R
- Physiology, Sri Venkateswaraa Medical College Hospital and Research Centre, Puducherry, IND
| | - Dhibika Mathivanan
- Microbiology, Indira Gandhi Medical College and Research Institute, Puducherry, IND
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Tung DD, Minh NN, Nguyen HT, Nguyen Thi PN, Nguyen Thi HL, Nguyen DL, Pham DTN, Tran TQ, Nguyen DT, Nguyen LP. Lower Extremity Nerve Conduction Abnormalities in Vietnamese Patients with Type 2 Diabetes: A Cross-Sectional Study on Peripheral Neuropathy and Its Correlation with Glycemic Control and Renal Function. J Pers Med 2023; 13:jpm13040617. [PMID: 37109004 PMCID: PMC10142910 DOI: 10.3390/jpm13040617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/21/2023] [Accepted: 03/29/2023] [Indexed: 04/03/2023] Open
Abstract
Peripheral neuropathy is a common complication of type 2 diabetes mellitus (T2DM) that results in nerve conduction abnormalities. This study aimed to investigate the parameters of nerve conduction in lower extremities among T2DM patients in Vietnam. A cross-sectional study was conducted on 61 T2DM patients aged 18 years and older, diagnosed according to the American Diabetes Association’s criteria. Data on demographic characteristics, duration of diabetes, hypertension, dyslipidemia, neuropathy symptoms, and biochemical parameters were collected. Nerve conduction parameters were measured in the tibial and peroneal nerves, including peripheral motor potential time, response amplitude M, and motor conduction speed, as well as sensory conduction in the shallow nerve. The study found a high rate of peripheral neuropathy among T2DM patients in Vietnam, with decreased conduction rate, motor response amplitude, and nerve sensation. The incidence of nerve damage was highest in the right peroneal nerve and left peroneal nerve (86.7% for both), followed by the right tibial nerve and left tibial nerve (67.2% and 68.9%, respectively). No significant differences were found in the rate of nerve defects between different age groups, body mass index (BMI) groups, or groups with hypertension or dyslipidemia. However, a statistically significant association was found between the rate of clinical neurological abnormalities and the duration of diabetes (p < 0.05). Patients with poor glucose control and/or decreased renal function also had a higher incidence of nerve defects. The study highlights the high incidence of peripheral neuropathy among T2DM patients in Vietnam and the association between nerve conduction abnormalities and poor glucose control and/or decreased renal function. The findings underscore the importance of early diagnosis and management of neuropathy in T2DM patients to prevent serious complications.
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Affiliation(s)
- Do Dinh Tung
- Saint Paul General Hospital, 12A Chu Van An, Ba Dinh District, Ha Noi 100000, Vietnam
- Vietnam Diabetes Educators Association, 52/A1 Dai Kim Urban Area, Hoang Mai District, Ha Noi 100000, Vietnam
| | - Nui Nguyen Minh
- Department of Joints and Endocrinology, Military Medical University, 160, Phung Hung Street, Hadong District, Ha Noi 100000, Vietnam
| | - Hanh Thi Nguyen
- Department of Joints and Endocrinology, Military Medical University, 160, Phung Hung Street, Hadong District, Ha Noi 100000, Vietnam
| | - Phi Nga Nguyen Thi
- Department of Joints and Endocrinology, Military Medical University, 160, Phung Hung Street, Hadong District, Ha Noi 100000, Vietnam
| | - Huong Lan Nguyen Thi
- Saint Paul General Hospital, 12A Chu Van An, Ba Dinh District, Ha Noi 100000, Vietnam
| | - Duc Long Nguyen
- Saint Paul General Hospital, 12A Chu Van An, Ba Dinh District, Ha Noi 100000, Vietnam
| | - Dung Thuy Nguyen Pham
- NTT Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
| | - Toan Quoc Tran
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet St., Cau Giay Dist., Ha Noi 100000, Vietnam
| | - Duong Thanh Nguyen
- Institute for Tropical Technology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet St., Cau Giay Dist., Ha Noi 100000, Vietnam
| | - Linh Phuong Nguyen
- School of Preventive Medicine and Public Health, Ha Noi Medical University, 1, Ton That Tung Street, Dong Da District, Ha Noi 100000, Vietnam
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Gavan DE, Gavan A, Bondor CI, Florea B, Bowling FL, Inceu GV, Colobatiu L. SUDOSCAN, an Innovative, Simple and Non-Invasive Medical Device for Assessing Sudomotor Function. SENSORS (BASEL, SWITZERLAND) 2022; 22:7571. [PMID: 36236669 PMCID: PMC9573142 DOI: 10.3390/s22197571] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 09/29/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Diabetic autonomic neuropathy is probably the most undiagnosed but serious complication of diabetes. The main objectives were to assess the prevalence of peripheral and autonomic neuropathy in a population of diabetic patients, analyze it in a real-life outpatient unit scenario and determine the feasibility of performing SUDOSCAN tests together with widely used tests for neuropathy. A total of 33 patients were included in the study. Different scoring systems (the Toronto Clinical Neuropathy Score-TCNS; the Neuropathy Disability Score-NDS; and the Neuropathy Symptom Score-NSS) were applied to record diabetic neuropathy (DN), while the SUDOSCAN medical device was used to assess sudomotor function, detect diabetic autonomic neuropathy and screen for cardiac autonomic neuropathy (CAN). Fifteen (45.5%) patients had sudomotor dysfunction. The SUDOSCAN CAN risk score was positively correlated with the hands' electrochemical sweat conductance (ESC), diastolic blood pressure (DBP), the level of the glycated hemoglobin, as well as with the TCNS, NDS and NSS. Performing SUDOSCAN tests together with other tests for DN proved to be a feasible approach that could be used in daily clinical practice in order to screen for DN, as well as for the early screening of CAN, before more complex and time-consuming tests.
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Affiliation(s)
- Dana Elena Gavan
- Clinic of Podiatry, 10 Iuliu Moldovan Street, 400348 Cluj-Napoca, Romania
| | - Alexandru Gavan
- Department of Medical Devices, Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, 4 Louis Pasteur Street, 400349 Cluj-Napoca, Romania
| | - Cosmina Ioana Bondor
- Department of Medical Informatics and Biostatistics, Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 6 Louis Pasteur Street, 400349 Cluj-Napoca, Romania
| | - Bogdan Florea
- Clinic of Podiatry, 10 Iuliu Moldovan Street, 400348 Cluj-Napoca, Romania
| | - Frank Lee Bowling
- Faculty of Medicine, University of Manchester, Oxford Road, Manchester M13 9PL, UK
- Department of Vascular Surgery and Reconstructive Microsurgery, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Square, 300041 Timisoara, Romania
| | - Georgeta Victoria Inceu
- Department of Diabetes, Nutrition and Metabolical Diseases, Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 2–4 Clinicilor Street, 400006 Cluj-Napoca, Romania
| | - Liora Colobatiu
- Department of Medical Devices, Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, 4 Louis Pasteur Street, 400349 Cluj-Napoca, Romania
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11
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Menduni M, D'Amato C, Leoni M, Izzo V, Staltari M, Greco C, Abbatepassero A, Seminara G, D'Ippolito I, Lauro D, Spallone V. Clinical scoring systems for the risk of cardiovascular autonomic neuropathy in type 1 and type 2 diabetes: a simple tool. J Peripher Nerv Syst 2022; 27:259-270. [PMID: 36029134 DOI: 10.1111/jns.12510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 08/01/2022] [Accepted: 08/19/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND AIMS This study was aimed at developing a clinical risk score for cardiovascular autonomic neuropathy (CAN) for type 1 and type 2 diabetes. METHODS In a retrospective cross-sectional one-centre study in an unselected population, 115 participants with type 1 diabetes (age 41.1±12.2 years), and 161 with type 2 diabetes (age 63.1±8.9 years), well-characterised for clinical variables, underwent standard cardiovascular reflex tests (CARTs). Strength of associations of confirmed CAN (based on 2 abnormal CARTs) with clinical variables was used to build a CAN risk score. RESULTS CAN risk score was based on resting heart rate, HbA1c, retinopathy, nephropathy, cardiovascular disease in both type 1 and type 2 diabetes, and on HDL cholesterol, systolic blood pressure, and smoking in type 1 diabetes or insulin treatment and physical activity in type 2 diabetes (range 0-10). In type 1 diabetes, CAN risk score showed an area under the ROC curve (AUC) of 0.890±0.034, and at cut-off of 4 sensitivity of 88%, specificity of 74.4%, and negative predictive value (NPV) of 95.7% for confirmed CAN. In type 2 diabetes, CAN risk score showed an AUC of 0.830±0.051 and at the cut-off of 4 sensitivity and specificity of 78.6% and 73.5%, respectively, and NPV of 97.3% for confirmed CAN. INTERPRETATION These newly developed CAN risk scores are accessible in clinical practice and, if confirmed in a validation study, they might identify asymptomatic individuals with diabetes at greater risk of CAN to be referred to CARTs, thus limiting the burden of a universal screening. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Marika Menduni
- Department of Systems Medicine, Endocrinology Section, University of Rome Tor Vergata, Rome, Italy
| | - Cinzia D'Amato
- Department of Systems Medicine, Endocrinology Section, University of Rome Tor Vergata, Rome, Italy
| | - Martina Leoni
- Department of Systems Medicine, Endocrinology Section, University of Rome Tor Vergata, Rome, Italy
| | - Valentina Izzo
- Department of Systems Medicine, Endocrinology Section, University of Rome Tor Vergata, Rome, Italy
| | - Mariateresa Staltari
- Department of Systems Medicine, Endocrinology Section, University of Rome Tor Vergata, Rome, Italy
| | - Carla Greco
- Department of Systems Medicine, Endocrinology Section, University of Rome Tor Vergata, Rome, Italy
| | - Andrea Abbatepassero
- Department of Systems Medicine, Endocrinology Section, University of Rome Tor Vergata, Rome, Italy
| | - Giuseppe Seminara
- Department of Systems Medicine, Endocrinology Section, University of Rome Tor Vergata, Rome, Italy
| | - Ilenia D'Ippolito
- Department of Systems Medicine, Endocrinology Section, University of Rome Tor Vergata, Rome, Italy
| | - Davide Lauro
- Department of Systems Medicine, Endocrinology Section, University of Rome Tor Vergata, Rome, Italy
| | - Vincenza Spallone
- Department of Systems Medicine, Endocrinology Section, University of Rome Tor Vergata, Rome, Italy
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Factors Associated with Reduced Heart Rate Variability in the General Japanese Population: The Iwaki Cross-Sectional Research Study. Healthcare (Basel) 2022; 10:healthcare10050793. [PMID: 35627930 PMCID: PMC9141757 DOI: 10.3390/healthcare10050793] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/20/2022] [Accepted: 04/22/2022] [Indexed: 12/20/2022] Open
Abstract
Although many studies have reported factors associated with reduced heart rate variability (HRV) in Western populations, evidence is limited among Asian populations. Therefore, we investigated the factors associated with reduced HRV values in a general Japanese population by measuring HRV among the participants of the Iwaki Health Promotion Project who underwent medical examination in 2019. We performed 90-s HRV measurements in 1065 participants. Of these, we evaluated the coefficient of variation in R–R intervals (CVRR) and standard deviation in R–R intervals (SDNN). Blood was collected under a fasting condition, and investigations of glucose metabolism, lipid metabolism, renal function, liver function, advanced glycation end products, and blood pressure were performed. A multivariate regression analysis of the association between CVRR or SDNN and blood test parameters and blood pressure in 987 participants with adequately completed HRV assessments showed that reduced CVRR or SDNN was associated with higher levels of glycated hemoglobin (HbA1c), glycoalbumin, blood glucose, triglycerides, creatinine, plasma pentosidine, and diastolic blood pressure. In the general Japanese population, higher levels of HbA1c, glycoalbumin, blood glucose, triglycerides, creatinine, plasma pentosidine, and diastolic blood pressure are associated with reduced CVRR or SDNN, which are typical HRV parameters.
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Eckstein ML, Brockfeld A, Haupt S, Schierbauer JR, Zimmer RT, Wachsmuth NB, Zunner BEM, Zimmermann P, Erlmann M, Obermayer-Pietsch B, Aberer F, Moser O. Acute Changes in Heart Rate Variability to Glucose and Fructose Supplementation in Healthy Individuals: A Double-Blind Randomized Crossover Placebo-Controlled Trial. BIOLOGY 2022; 11:biology11020338. [PMID: 35205205 PMCID: PMC8869760 DOI: 10.3390/biology11020338] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 02/16/2022] [Accepted: 02/20/2022] [Indexed: 12/17/2022]
Abstract
Simple Summary In this study, we investigated the cardio-autonomic stress responses to the ingestion of liquid glucose, fructose, a combination thereof and a placebo in healthy individuals at rest. The cardio-autonomic response was more pronounced in all groups with carbohydrates compared to placebo indicating an increased cardio-autonomic stress response resulting in a reduced heart-rate variability. When investigating different levels of blood glucose, the findings showed a significant decline in heart-rate variability with increasing blood glucose levels. This was also seen with severely low levels of blood glucose. The speed of how quick blood glucose increased and decreased also impacted the cardio-autonomic response which further deteriorated heart-rate variability. These findings indicate that healthy human’s autonomic system responds quickly to changes in their blood glucose. Abstract Background: It is unknown how different types of carbohydrates alter the cardio-autonomic system in healthy individuals. Therefore, the aim of this study was to investigate how heart-rate variability changes to single dose ingestion of glucose, fructose, glucose and fructose, and an artificial sweetener (sucralose). Methods: In a double-blind randomized crossover placebo-controlled setting, 15 participants received all study-specific substances in liquid form. During each 2-h visit, venous blood glucose was measured in a 5-min interval while heart-rate variability was measured continuously via Holter-electrocardiograph. Results: Ingestion of different types of carbohydrates and sucralose showed significant differences for heart rate (p < 0.001), SDNN (p < 0.008), RMSSD (p < 0.001), pNN50 (p < 0.001) and blood pressure (p < 0.001). Different glucose levels significantly altered parameters of heart-rate variability and blood pressure (all p < 0.001), while the rate of change in blood glucose led to changes in heart rate variability, but not in heart rate (p = 0.25) or blood pressure (p = 0.99). Conclusions: Ingestion of different types of carbohydrates lead to reductions in heart-rate variability compared to a placebo. Blood glucose values above or below 70–90 mg/dL decreased heart rate variability while this was also seen for rapid glucose changes, yet not as pronounced. Healthy individuals should be conscious about carbohydrate intake while maintaining blood glucose levels between 70–90 mg/dL.
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Affiliation(s)
- Max Lennart Eckstein
- Division of Exercise Physiology and Metabolism, Department of Sport Science, University of Bayreuth, 95440 Bayreuth, Germany; (M.L.E.); (A.B.); (S.H.); (J.R.S.); (R.T.Z.); (N.B.W.); (B.E.M.Z.); (P.Z.); (M.E.); (F.A.)
| | - Antonia Brockfeld
- Division of Exercise Physiology and Metabolism, Department of Sport Science, University of Bayreuth, 95440 Bayreuth, Germany; (M.L.E.); (A.B.); (S.H.); (J.R.S.); (R.T.Z.); (N.B.W.); (B.E.M.Z.); (P.Z.); (M.E.); (F.A.)
| | - Sandra Haupt
- Division of Exercise Physiology and Metabolism, Department of Sport Science, University of Bayreuth, 95440 Bayreuth, Germany; (M.L.E.); (A.B.); (S.H.); (J.R.S.); (R.T.Z.); (N.B.W.); (B.E.M.Z.); (P.Z.); (M.E.); (F.A.)
| | - Janis Ramon Schierbauer
- Division of Exercise Physiology and Metabolism, Department of Sport Science, University of Bayreuth, 95440 Bayreuth, Germany; (M.L.E.); (A.B.); (S.H.); (J.R.S.); (R.T.Z.); (N.B.W.); (B.E.M.Z.); (P.Z.); (M.E.); (F.A.)
| | - Rebecca Tanja Zimmer
- Division of Exercise Physiology and Metabolism, Department of Sport Science, University of Bayreuth, 95440 Bayreuth, Germany; (M.L.E.); (A.B.); (S.H.); (J.R.S.); (R.T.Z.); (N.B.W.); (B.E.M.Z.); (P.Z.); (M.E.); (F.A.)
| | - Nadine Bianca Wachsmuth
- Division of Exercise Physiology and Metabolism, Department of Sport Science, University of Bayreuth, 95440 Bayreuth, Germany; (M.L.E.); (A.B.); (S.H.); (J.R.S.); (R.T.Z.); (N.B.W.); (B.E.M.Z.); (P.Z.); (M.E.); (F.A.)
| | - Beate Elisabeth Maria Zunner
- Division of Exercise Physiology and Metabolism, Department of Sport Science, University of Bayreuth, 95440 Bayreuth, Germany; (M.L.E.); (A.B.); (S.H.); (J.R.S.); (R.T.Z.); (N.B.W.); (B.E.M.Z.); (P.Z.); (M.E.); (F.A.)
| | - Paul Zimmermann
- Division of Exercise Physiology and Metabolism, Department of Sport Science, University of Bayreuth, 95440 Bayreuth, Germany; (M.L.E.); (A.B.); (S.H.); (J.R.S.); (R.T.Z.); (N.B.W.); (B.E.M.Z.); (P.Z.); (M.E.); (F.A.)
| | - Maximilian Erlmann
- Division of Exercise Physiology and Metabolism, Department of Sport Science, University of Bayreuth, 95440 Bayreuth, Germany; (M.L.E.); (A.B.); (S.H.); (J.R.S.); (R.T.Z.); (N.B.W.); (B.E.M.Z.); (P.Z.); (M.E.); (F.A.)
| | - Barbara Obermayer-Pietsch
- Endocrinology Lab Platform, Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, 8036 Graz, Austria;
| | - Felix Aberer
- Division of Exercise Physiology and Metabolism, Department of Sport Science, University of Bayreuth, 95440 Bayreuth, Germany; (M.L.E.); (A.B.); (S.H.); (J.R.S.); (R.T.Z.); (N.B.W.); (B.E.M.Z.); (P.Z.); (M.E.); (F.A.)
- Interdisciplinary Metabolic Medicine, Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Othmar Moser
- Division of Exercise Physiology and Metabolism, Department of Sport Science, University of Bayreuth, 95440 Bayreuth, Germany; (M.L.E.); (A.B.); (S.H.); (J.R.S.); (R.T.Z.); (N.B.W.); (B.E.M.Z.); (P.Z.); (M.E.); (F.A.)
- Interdisciplinary Metabolic Medicine, Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, 8036 Graz, Austria
- Correspondence: ; Tel.: +49-(0)921-55-3465
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Duque A, Mediano MFF, De Lorenzo A, Rodrigues Jr LF. Cardiovascular autonomic neuropathy in diabetes: Pathophysiology, clinical assessment and implications. World J Diabetes 2021; 12:855-867. [PMID: 34168733 PMCID: PMC8192252 DOI: 10.4239/wjd.v12.i6.855] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/05/2021] [Accepted: 05/20/2021] [Indexed: 02/06/2023] Open
Abstract
Cardiovascular autonomic neuropathy (CAN) is a debilitating condition that mainly occurs in long-standing type 2 diabetes patients but can manifest earlier, even before diabetes is diagnosed. CAN is a microvascular complication that results from lesions of the sympathetic and parasympathetic nerve fibers, which innervate the heart and blood vessels and promote alterations in cardiovascular autonomic control. The entire mechanism is still not elucidated, but several aspects of the pathophysiology of CAN have already been described, such as the production of advanced glycation end products, reactive oxygen species, nuclear factor kappa B, and pro-inflammatory cytokines. This microvascular complication is an important risk factor for silent myocardial ischemia, chronic kidney disease, myocardial dysfunction, major cardiovascular events, cardiac arrhythmias, and sudden death. It has also been suggested that, compared to other traditional cardiovascular risk factors, CAN progression may have a greater impact on cardiovascular disease development. However, CAN might be subclinical for several years, and a late diagnosis increases the mortality risk. The duration of the transition period from the subclinical to clinical stage remains unknown, but the progression of CAN is associated with a poor prognosis. Several tests can be used for CAN diagnosis, such as heart rate variability (HRV), cardiovascular autonomic reflex tests, and myocardial scintigraphy. Currently, it has already been described that CAN could be detected even during the subclinical stage through a reduction in HRV, which is a non-invasive test with a lower operating cost. Therefore, considering that diabetes mellitus is a global epidemic and that diabetic neuropathy is the most common chronic complication of diabetes, the early identification and treatment of CAN could be a key point to mitigate the morbidity and mortality associated with this long-lasting condition.
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Affiliation(s)
- Alice Duque
- Education and Research Department, Instituto Nacional de Cardiologia, Rio de Janeiro 22240006, RJ, Brazil
| | - Mauro Felippe Felix Mediano
- Education and Research Department, Instituto Nacional de Cardiologia, Rio de Janeiro 22240006, RJ, Brazil
- Laboratory of Clinical Research on Chagas Disease, Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro 21040360, RJ, Brazil
| | - Andrea De Lorenzo
- Education and Research Department, Instituto Nacional de Cardiologia, Rio de Janeiro 22240006, RJ, Brazil
| | - Luiz Fernando Rodrigues Jr
- Education and Research Department, Instituto Nacional de Cardiologia, Rio de Janeiro 22240006, RJ, Brazil
- Department of Physiological Sciences, Biomedical Institute, Federal University of the State of Rio de Janeiro, Rio de Janeiro 22240006, RJ, Brazil
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15
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Reynolds EL, Akinci G, Banerjee M, Looker HC, Patterson A, Nelson RG, Feldman EL, Callaghan BC. The determinants of complication trajectories in American Indians with type 2 diabetes. JCI Insight 2021; 6:146849. [PMID: 34027894 PMCID: PMC8262294 DOI: 10.1172/jci.insight.146849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 04/14/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUNDWe aimed to determine whether metabolic syndrome (MetS) affects longitudinal trajectories of diabetic complications, including neuropathy, cardiovascular autonomic neuropathy (CAN), and kidney disease in American Indians with type 2 diabetes.METHODSWe performed a prospective study where participants underwent annual metabolic phenotyping and outcome measurements. The updated National Cholesterol Education Program criteria were used to define MetS and its individual components, using BMI instead of waist circumference. Neuropathy was defined using the Michigan Neuropathy Screening Instrument index, CAN with the expiration/inspiration ratio, and kidney disease with glomerular filtration rate. Mixed-effects models were used to evaluate associations between MetS and these outcomes.RESULTSWe enrolled 141 participants: 73.1% female, a mean (±SD) age of 49.8 (12.3), and a diabetes duration of 19.6 years (9.7 years) who were followed for a mean of 3.1 years (1.7 years). MetS components were stable during follow-up except for declining obesity and cholesterol. Neuropathy (point estimate [PE]: 0.30, 95% CI: 0.24, 0.35) and kidney disease (PE: -14.2, 95% CI: -16.8, -11.4) worsened over time, but CAN did not (PE: -0.002, 95% CI: -0.006, 0.002). We found a significant interaction between the number of MetS components and time for neuropathy (PE: 0.05, 95% CI: 0.01-0.10) but not CAN (PE: -0.003, 95% CI: -0.007, 0.001) or kidney disease (PE: -0.69, 95% CI: -3.16, 1.76). Systolic blood pressure (SBP, unit = 10 mmHg) was associated with each complication: neuropathy (PE: 0.23, 95% CI: 0.07, 0.39), CAN (PE: -0.02, 95% CI: -0.03, -0.02), and kidney disease (PE: -10.2, 95% CI: -15.4, -5.1).CONCLUSIONIn participants with longstanding diabetes, neuropathy and kidney disease worsened during follow-up, despite stable to improving MetS components, suggesting that early metabolic intervention is necessary to prevent complications in such patients. Additionally, the number of MetS components was associated with an increased rate of neuropathy progression, and SBP was associated with each complication.FUNDINGThe following are funding sources: NIH T32NS0007222, NIH R24DK082841, NIH R21NS102924, NIH R01DK115687, the Intramural Program of the NIDDK, the NeuroNetwork for Emerging Therapies, the Robert and Katherine Jacobs Environmental Health Initiative, the Robert E. Nederlander Sr. Program for Alzheimer's Research, and the Sinai Medical Staff Foundation.TRIAL REGISTRATIONClinicalTrials.gov, NCT00340678.
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Affiliation(s)
- Evan L. Reynolds
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
| | - Gulcin Akinci
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
- Division of Pediatric Neurology, Dr. Behcet Uz Children’s Hospital, Izmir, Turkey
| | - Mousumi Banerjee
- Department of Biostatistics, University of Michigan, Ann Arbor, Michigan, USA
| | - Helen C. Looker
- Chronic Kidney Disease Section, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Phoenix, Arizona, USA
| | - Adam Patterson
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
| | - Robert G. Nelson
- Chronic Kidney Disease Section, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Phoenix, Arizona, USA
| | - Eva L. Feldman
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
| | - Brian C. Callaghan
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
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Osailan A. Cardiovascular autonomic neuropathy in people with type 2 diabetes mellitus; investigation of its association with classical cardiovascular risk factors using cardiovascular autonomic reflex tests: a cross-sectional study. Egypt Heart J 2021; 73:44. [PMID: 33983514 PMCID: PMC8119534 DOI: 10.1186/s43044-021-00168-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 04/30/2021] [Indexed: 11/10/2022] Open
Abstract
Background People with type 2 diabetes mellitus (DM) are at increased risk of cardiovascular disease (CVD). Cardiovascular autonomic neuropathy (CAN) is an underdiagnosed risk factor for CVD, which is prevalent among people with 2DM and can lead to CVD and CVD-related mortality. Little is known about the risk factors associated with CAN in type 2DM. Thus, the study was aimed to assess CAN using five cardiovascular autonomic reflex tests (represented by Ewing’s score) and explore the factors associated with CAN in people with type 2DM. The studied factors include traditional and serological CVD risk factors obtained from a fasting blood sample and cardiorespiratory fitness (CRF) obtained via attainment of the highest peak of volumes of O2 (VO2Peak). Results Univariate analysis revealed a significant positive correlation between resting systolic blood pressure (SBP) and Ewing’s score (r=0.47, p=.02) and an inverse correlation between VO2Peak and Ewing’s score (r=−0.64, p=.001). Multivariate linear regression revealed that a significant model that included resting SBP and VO2Peak explained 93.8% of Ewing’s score variance. Conclusion CAN was associated with two CVD parameters, including resting SBP and CRF, which may indicate the importance of controlling these two factors to prevent or reduce CAN in people with type 2DM.
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Affiliation(s)
- Ahmad Osailan
- Department of Physical Therapy and Health Rehabilitation, College of Applied Medical Sciences, Prince Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia.
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17
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Alalawi F, Bashier A. Management of diabetes mellitus in dialysis patients: Obstacles and challenges. Diabetes Metab Syndr 2021; 15:1025-1036. [PMID: 34000713 DOI: 10.1016/j.dsx.2021.05.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 04/30/2021] [Accepted: 05/02/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND AIMS Diabetic kidney disease (DKD) is a major health issue that is associated with an increased risk of morbidity and mortality. The treatment of DKD is challenging given changes in blood glucose homeostasis, unclear accuracy of glucose metrics, and altered kinetics of the blood glucose-lowering medications. There is uncertainty surrounding the optimal glycemic target in this population although recent epidemiologic data suggest that HbA1c ranges of 6-8%, as well as 7-9%, are associated with increased survival rates among diabetic dialysis patients. Furthermore, the treatment of diabetes in patients maintained on dialysis is challenging, and many blood glucose-lowering medications are renally metabolized and excreted hence requiring dose adjustment or avoidance in dialysis patients. METHOD ology: PubMed, Google Scholar, and Medline were searched for all literature discussing the management of diabetes in dialysis patients. RESULTS The literature was discussed under many subheadings providing the latest evidence in the treatment of diabetes in dialysis patients. CONCLUSION The management of diabetes in dialysis is very complex requiring a multi-disciplinary team involving endocrinologists and nephrologists to achieve targets and reduce morbidity and mortality.
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Affiliation(s)
- Fakhriya Alalawi
- Nephrology Department, Dubai Hospital. Dubai Health Authority, United Arab Emirates
| | - Alaaeldin Bashier
- Endocrine Department, Dubai Hospital. Dubai Health Authority, United Arab Emirates.
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Serdarova M, Dimova R, Chakarova N, Grozeva G, Todorova A, Tankova T. Relationship between cardiac autonomic neuropathy and cardio-metabolic risk profile in adults with type 1 diabetes. Diabetes Res Clin Pract 2021; 174:108721. [PMID: 33640411 DOI: 10.1016/j.diabres.2021.108721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 09/01/2020] [Accepted: 02/06/2021] [Indexed: 10/22/2022]
Abstract
AIM The present study aims to determine the prevalence and association of cardiac autonomic neuropathy (CAN) with some traditional cardio-metabolic risk factors in adults with type 1 diabetes (T1D). MATERIAL AND METHODS 235 adults with T1D, divided into three groups according to diabetes duration, were recruited in this cross-sectional study from May 2017 till December 2018. Anthropometric parameters and blood pressure were measured. Lipids, liver enzymes, uric acid, creatinine, HbA1c and high sensitive C-reactive protein (hsCRP) were measured at fasting. Albumin/creatinine ratio (ACR) was measured in a first spot urine sample. Body composition was evaluated using bio-impedance analysis, Inbody720 (Biospace, USA). Advanced glycation end products (AGEs) were assessed by autofluorescence method, AGE Reader (Diagnoptics, The Netherlands). CAN was assessed by ANX-3.0 monitoring technology (ANSAR Medical Technologies, Inc., Philadelphia, PA), applying standard clinical tests. 2005 IDF and 2009 JIS definitions were used to define Metabolic Syndrome (MetS). RESULTS The prevalence of CAN was 23% and increased with diabetes duration. Sympathetic activity was independently related to age, albumin/creatinine ratio (ACR) and total body fat mass, and parasympathetic activity - to age and ACR. Elevated hsCRP, AGEs and body fat, diabetic retinopathy and nephropathy, as well as hypertension, dyslipidemia and metabolic syndrome were found to increase the risk of CAN in T1D. CONCLUSION CAN appears to be a common complication of T1D, especially with longer duration, and is found to be related to diabetic microvascular disease and metabolic syndrome components.
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Affiliation(s)
- M Serdarova
- Department of Endocrinology, Medical University of Sofia, Bulgaria.
| | - R Dimova
- Department of Endocrinology, Medical University of Sofia, Bulgaria
| | - N Chakarova
- Department of Endocrinology, Medical University of Sofia, Bulgaria
| | - G Grozeva
- Department of Endocrinology, Medical University of Sofia, Bulgaria
| | - A Todorova
- Department of Endocrinology, Medical University of Sofia, Bulgaria
| | - T Tankova
- Department of Endocrinology, Medical University of Sofia, Bulgaria
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A systematic review and meta-analysis of the serum lipid profile in prediction of diabetic neuropathy. Sci Rep 2021; 11:499. [PMID: 33436718 PMCID: PMC7804465 DOI: 10.1038/s41598-020-79276-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 12/04/2020] [Indexed: 12/19/2022] Open
Abstract
Whether the lipid profile in diabetic patients is associated with diabetic neuropathy (DN) development remains ambiguous, as does the predictive value of serum lipid levels in the risk of DN. Here, we performed the first meta-analysis designed to investigate the relationship between DN and the serum levels of triglyceride (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL), and low-density lipoprotein cholesterol (LDL). Candidate studies were comprehensively identified by searching PubMed, Embase, Cochrane Library and Web of Science databases up to May 2020. Observational methodological meta-analysis was conducted to assess the relationships of TG, TC, HDL, and LDL levels with DN. Changes in blood lipids were used to estimate the effect size. The results were pooled using a random-effects or fixed-effects model. Potential sources of heterogeneity were explored by subgroup analysis. Various outcomes were included, and statistical analyses were performed using STATA (Version 12.0). Mean differences (MDs) and odds ratios (ORs) with 95% confidence intervals (CIs) were estimated. The Newcastle–Ottawa Scale (NOS) was applied to assess the methodological quality. I2 statistics were calculated to evaluate statistical heterogeneity. Funnel plots were utilized to test for publication bias. A sensitivity analysis was performed by omitting each study one by one. Thirty-nine clinical trials containing 32,668 patients were included in the meta-analysis. The results demonstrated that DN patients showed higher TG and lower HDL levels (MD = 0.34, 95% CI: 0.20–0.48 for TG; MD = -0.05, 95% CI: -0.08–-0.02, I2 = 81.3% for HDL) than controls. Subgroup analysis showed that patients with type 1 diabetes mellitus (T1DM) neuropathy had elevated TG levels in their serum (MD = 0.25, 95% CI: 0.16–0.35,I2 = 64.4% for T1DM). However, only patients with T1DM neuropathy had reduced serum HDL levels, and there was no significant difference in serum HDL levels between patients with T2DM neuropathy and controls (MD = -0.07, 95% CI: -0.10–-0.03, I2 = 12.4% for T1DM; MD = -0.02, 95% CI: -0.07–0.03, I2 = 80.2% for T2DM). TC and LDL levels were not significantly different between DN patients and controls (MD = -0.03, 95% CI: -0.14–0.09, I2 = 82.9% for TC; MD = -0.00, 95% CI: -0.08–0.08, I2 = 78.9% for LDL). In addition, compared with mild or painless DN patients, those with moderate or severe pain DN pain had significantly reduced serum TC and LDL levels (MD = -0.31, 95% CI: -0.49–-0.13, I2 = 0% for TC; MD = -0.19, 95% CI: -0.32–-0.08, I2 = 0% for LDL). TG levels and HDL levels did not vary considerably between patients with mild or painless DN and those with moderate or severe DN pain patients (MD = 0.12, 95% CI: -0.28–0.51, I2 = 83.2% for TG; MD = -0.07, 95% CI:-0.14–0.01, I2 = 58.8% for HDL). Furthermore, people with higher TG and LDL levels had higher risk of DN (OR = 1.36, 95% CI: 1.20–1.54, I2 = 86.1% for TG and OR = 1.10, 95% CI: 1.02–1.19, I2 = 17.8% for LDL). Conversely, high serum HDL levels reduced the risk of DN (OR = 0.85, 95% CI: 0.75–0.96, I2 = 72.6%), while TC levels made no significant difference with the risk of DN (OR = 1.02, 95% CI: 1.00–1.04, I2 = 84.7%). This meta-analysis indicated that serum lipid profile changes are among the biological characteristics of DN. Lipid levels should be explored as routine laboratory markers for predicting the risk of DN, as they will help clinicians choose appropriate therapies, and thus optimize the use of available resources.
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Eckstein ML, Farinha JB, McCarthy O, West DJ, Yardley JE, Bally L, Zueger T, Stettler C, Boff W, Reischak-Oliveira A, Riddell MC, Zaharieva DP, Pieber TR, Müller A, Birnbaumer P, Aziz F, Brugnara L, Haahr H, Zijlstra E, Heise T, Sourij H, Roden M, Hofmann P, Bracken RM, Pesta D, Moser O. Differences in Physiological Responses to Cardiopulmonary Exercise Testing in Adults With and Without Type 1 Diabetes: A Pooled Analysis. Diabetes Care 2021; 44:240-247. [PMID: 33184152 DOI: 10.2337/dc20-1496] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 10/14/2020] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To investigate physiological responses to cardiopulmonary exercise (CPX) testing in adults with type 1 diabetes compared with age-, sex-, and BMI-matched control participants without type 1 diabetes. RESEARCH DESIGN AND METHODS We compared results from CPX tests on a cycle ergometer in individuals with type 1 diabetes and control participants without type 1 diabetes. Parameters were peak and threshold variables of VO2, heart rate, and power output. Differences between groups were investigated through restricted maximum likelihood modeling and post hoc tests. Differences between groups were explained by stepwise linear regressions (P < 0.05). RESULTS Among 303 individuals with type 1 diabetes (age 33 [interquartile range 22; 43] years, 93 females, BMI 23.6 [22; 26] kg/m2, HbA1c 6.9% [6.2; 7.7%] [52 (44; 61) mmol/mol]), VO2peak (32.55 [26.49; 38.72] vs. 42.67 ± 10.44 mL/kg/min), peak heart rate (179 [170; 187] vs. 184 [175; 191] beats/min), and peak power (216 [171; 253] vs. 245 [200; 300] W) were lower compared with 308 control participants without type 1 diabetes (all P < 0.001). Individuals with type 1 diabetes displayed an impaired degree and direction of the heart rate-to-performance curve compared with control participants without type 1 diabetes (0.07 [-0.75; 1.09] vs. 0.66 [-0.28; 1.45]; P < 0.001). None of the exercise physiological responses were associated with HbA1c in individuals with type 1 diabetes. CONCLUSIONS Individuals with type 1 diabetes show altered responses to CPX testing, which cannot be explained by HbA1c. Intriguingly, the participants in our cohort were people with recent-onset type 1 diabetes; heart rate dynamics were altered during CPX testing.
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Affiliation(s)
- Max L Eckstein
- Cardiovascular Diabetology Research Group, Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
- Division of Exercise Physiology and Metabolism, Department of Sport Science, University of Bayreuth, Bayreuth, Germany
| | - Juliano Boufleur Farinha
- School of Physical Education, Physiotherapy and Dance, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Olivia McCarthy
- Applied Sport, Technology, Exercise and Medicine Research Centre, College of Engineering, Swansea University, Swansea, U.K
| | - Daniel J West
- Population Health Science Institute, Faculty of Medical Science, Newcastle University, Newcastle upon Tyne, U.K
| | - Jane E Yardley
- Alberta Diabetes Institute, Edmonton, Alberta, Canada
- Augustana Faculty, University of Alberta, Camrose, Alberta, Canada
| | - Lia Bally
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Thomas Zueger
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Christoph Stettler
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Winston Boff
- Institute for Children with Diabetes, Conceição Hospital Group, Porto Alegre, Brazil
| | - Alvaro Reischak-Oliveira
- School of Physical Education, Physiotherapy and Dance, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Michael C Riddell
- School of Kinesiology and Health Science, York University, Toronto, Ontario, Canada
| | - Dessi P Zaharieva
- Department of Pediatric Endocrinology and Diabetes, Stanford University School of Medicine, Stanford, CA
| | - Thomas R Pieber
- Cardiovascular Diabetology Research Group, Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Alexander Müller
- Cardiovascular Diabetology Research Group, Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
- Exercise Physiology, Training & Training Therapy Research Group, Institute of Sports Science, University of Graz, Graz, Austria
| | - Philipp Birnbaumer
- Exercise Physiology, Training & Training Therapy Research Group, Institute of Sports Science, University of Graz, Graz, Austria
| | - Faisal Aziz
- Cardiovascular Diabetology Research Group, Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Laura Brugnara
- CIBERDEM-Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders and IDIBAPS-August Pi i Sunyer Biomedical Research Institute/Hospital Clínic de Barcelona, Barcelona, Spain
| | | | | | | | - Harald Sourij
- Cardiovascular Diabetology Research Group, Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Michael Roden
- Institute for Clinical Diabetology, German Diabetes Centre, Leibniz Institute for Diabetes Research, Düsseldorf, Germany
- Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Peter Hofmann
- Exercise Physiology, Training & Training Therapy Research Group, Institute of Sports Science, University of Graz, Graz, Austria
| | - Richard M Bracken
- Applied Sport, Technology, Exercise and Medicine Research Centre, College of Engineering, Swansea University, Swansea, U.K
| | - Dominik Pesta
- Institute for Clinical Diabetology, German Diabetes Centre, Leibniz Institute for Diabetes Research, Düsseldorf, Germany
- German Center for Diabetes Research, München-Neuherberg, Germany
| | - Othmar Moser
- Cardiovascular Diabetology Research Group, Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
- Division of Exercise Physiology and Metabolism, Department of Sport Science, University of Bayreuth, Bayreuth, Germany
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Azmi S, Ferdousi M, Kalteniece A, Petropoulos IN, Ponirakis G, Alam U, Asghar O, Marshall A, Sankar A, Boulton AJM, Soran H, Efron N, Malik RA. Protection from neuropathy in extreme duration type 1 diabetes. J Peripher Nerv Syst 2020; 26:49-54. [PMID: 33236478 PMCID: PMC7983958 DOI: 10.1111/jns.12423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 11/17/2020] [Accepted: 11/22/2020] [Indexed: 12/17/2022]
Abstract
A proportion of individuals with type 1 diabetes mellitus for more than 50 years (medallists) may be protected from developing nephropathy, retinopathy and neuropathy. Detailed neuropathy phenotyping was undertaken in a cohort of 33 medallists aged 63.7 ± 1.4 years with diabetes for 58.5 ± 0.8 years and HbA1c of 65.9 ± 2.1 mmol/mmol. Medallists had a significantly higher HbA1c (P < .001), lower estimated glomerular filtration rate (eGFR) (P = .005) and higher albumin creatinine excretion ratio (ACR) (P = .01), but a lower total cholesterol (P < .001), triacylglycerols (P = .001), low density lipoprotein‐cholesterol (P < .001) and higher high density lipoprotein‐cholesterol (P = .03), compared to controls. Twenty‐four percent of participants were identified as “escapers” without confirmed diabetic neuropathy. They had a lower neuropathy symptom profile (P = .002), vibration perception threshold (P = .02), warm threshold (P = .05), higher peroneal amplitude (P = .005), nerve conduction velocity (P = .03), heart rate variability (P = .001), corneal nerve fibre density (P = 0.001), branch density (P < .001) and length (P = .001), compared to medallists with diabetic neuropathy. Escapers had a shorter duration of diabetes (P = .006), lower alcohol consumption (P = .04), lower total cholesterol (P = .04) and LDL (P = .02), higher eGFR (P = .001) and lower ACR (P < .001). Patients with extreme duration diabetes without diabetic neuropathy have a comparable HbA1c, blood pressure and body mass index, but a more favourable lipid profile and consume less alcohol compared to those with diabetic neuropathy.
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Affiliation(s)
- Shazli Azmi
- Faculty of Biology, Medicine and Health, University of Manchester and Manchester University Foundation Trust, Manchester, UK
| | - Maryam Ferdousi
- Faculty of Biology, Medicine and Health, University of Manchester and Manchester University Foundation Trust, Manchester, UK
| | - Alise Kalteniece
- Faculty of Biology, Medicine and Health, University of Manchester and Manchester University Foundation Trust, Manchester, UK
| | | | | | - Uazman Alam
- Diabetes & Endocrinology Research, Institute of Cardiovascular and Metabolic Medicine and The Pain Research Institute, University of Liverpool and Liverpool University NHS Hospital Trust, Liverpool, UK
| | - Omar Asghar
- Faculty of Biology, Medicine and Health, University of Manchester and Manchester University Foundation Trust, Manchester, UK
| | - Andrew Marshall
- Institute of Life course and Medical Sciences, University of Liverpool, Liverpool, UK
| | - Adhithya Sankar
- Faculty of Biology, Medicine and Health, University of Manchester and Manchester University Foundation Trust, Manchester, UK
| | - Andrew J M Boulton
- Faculty of Biology, Medicine and Health, University of Manchester and Manchester University Foundation Trust, Manchester, UK
| | - Handrean Soran
- Faculty of Biology, Medicine and Health, University of Manchester and Manchester University Foundation Trust, Manchester, UK
| | - Nathan Efron
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Queensland, Australia
| | - Rayaz A Malik
- Faculty of Biology, Medicine and Health, University of Manchester and Manchester University Foundation Trust, Manchester, UK.,Department of Medicine, Weill Cornell Medicine-Qatar, Doha, Qatar
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22
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Meher M, Panda JK. Impact of glycemic control over cardiac autonomic neuropathy. J Diabetes Metab Disord 2020; 19:1339-1344. [PMID: 33520839 DOI: 10.1007/s40200-020-00653-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 08/13/2020] [Accepted: 10/05/2020] [Indexed: 02/07/2023]
Abstract
Purpose Cardiovascular autonomic neuropathy (CAN) is one of the most common and serious complications associated with diabetes and is defined as the impairment of the autonomic control of the cardiovascular system, whose prevalence in Indian population has been reported to be > 50%. The risk factors associated with CAN include hyperglycemia, duration of diabetes, hypertension, dyslipidemia, and obesity. This study was conducted to examine the association of CAN with its determinants among diabetics. Methods Socio-demographic characteristics were noted alongwith performance of biochemical analyses of blood samples according to standard hospital pathology laboratory protocols. Clinical assessment of CAN comprised a of 5 indexes, including 3 heart rate variability parameters (resting tachycardia, Qtc interval > 440 msec, exercise intolerance) and 2 blood pressure parameters (orthostatic hypotension, abnormal hand gripping test). Results The odds of CAN increased with poor glycemic control (FBS ≥ 126 mg/dL (OR = 1.17 (1.02-10.68); 2 hr PPBS ≥ 200 mg/dL (OR 1.63 (1.26-8.82) and HbA1c ≥ 6.5% (OR = 10.68 (1.54-208.02). Significant difference was also found in relation to duration of diabetes, weight and body mass index of the participants with various grades of CAN. Conclusions CAN is associated strongly with poor glycemic control. Obesity seems to be involved in the impairments of the cardiac autonomic function and this factor must therefore be taken into account in future studies when interpreting the results. Body mass control and glycemic control could provide an important approach to reducing CAN.
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Affiliation(s)
- Meghanad Meher
- Department of General Medicine, AIIMS Bhubaneswar, Bhubaneswar, Odisha 751019 India
| | - Jayanta Kumar Panda
- Department of General Medicine, SCB Medical College & Hospital, Cuttack, Odisha 753007 India
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23
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Didangelos T, Veves A. Treatment of Diabetic Cardiovascular Autonomic, Peripheral and Painful Neuropathy. Focus on the Treatment of Cardiovascular Autonomic Neuropathy with ACE Inhibitors. Curr Vasc Pharmacol 2020; 18:158-171. [PMID: 31109280 DOI: 10.2174/1570161117666190521101342] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 12/23/2018] [Accepted: 12/31/2018] [Indexed: 12/12/2022]
Abstract
Neuropathies of the peripheral and autonomic nervous systems affect up to half of all people with diabetes mellitus, and are major risk factors for foot ulceration, amputation and cardiovascular dysfunction. Peripheral neuropathies manifest with either painful or painless symptoms, but many patients experience both. Once diagnosed appropriately, painful diabetic neuropathy management presents a unique challenge for physicians and should be considered as a syndrome, clinically distinct from diabetic peripheral neuropathy. The aetiology is multifactorial: metabolic changes in diabetes may directly affect neural tissue and neurodegenerative changes are precipitated by compromised nerve vascular supply. Metabolic changes include the elevated polyol pathway activity, the increased oxidative stress, the formation of advanced glycation and lipoxidation end products, and various pro-inflammatory changes. These mechanisms work in combination and interact in a mutually facilitatory fashion. This review focuses on the current therapies for the management of peripheral and cardiovascular autonomic neuropathy and of painful neuropathy as a distinct entity, based on the current knowledge of diabetic neuropathy. Moreover, the role of ACE inhibition has been explored in the treatment of Cardiovascular Autonomic Neuropathy.
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Affiliation(s)
- Triantafyllos Didangelos
- Diabetes Center, 1st Propedeutic Department of Internal Medicine, Aristotle University of Thessaloniki, ''AHEPA'' Hospital, Thessaloniki, Greece
| | - Aristidis Veves
- Center for Regenerative Therapeutics, The Joslin-Beth Israel Deaconess Foot Center, Beth Israel Deaconess Medical Center, Boston, MA, United States
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Azmi S, Alam U, Burgess J, Malik RA. State-of-the-art pharmacotherapy for diabetic neuropathy. Expert Opin Pharmacother 2020; 22:55-68. [PMID: 32866410 DOI: 10.1080/14656566.2020.1812578] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION The global epidemic of diabetes has led to an epidemic of diabetes complications. Diabetic neuropathy is the most common microvascular complication, of which diabetic peripheral neuropathy (DPN) and autonomic neuropathy (AN) are the most prevalent, affecting ~50% of patients. DPN results in pain with a poor quality of life and a loss of sensation with an increased risk of foot ulceration. Autonomic neuropathy can cause significant morbidity in a minority and is associated with increased mortality. The cornerstone of treatment to prevent or limit the progression of DPN/AN is multifactorial risk factor modification including treatment of glycemia, lipids and blood pressure. Whilst, there are no FDA-approved disease-modifying therapies, there are a number of therapies to relieve symptoms in DPN and AN. AREAS COVERED The authors discuss current approved therapies for painful diabetic neuropathy and autonomic neuropathy. They also address the potential role of improving risk factors to limit the development and progression of diabetic neuropathy and new pathogenetic and pain-relieving treatments. EXPERT OPINION The FDA-approved Pregabalin and Duloxetine over 25 years ago and Tapentadol, 6 years ago for painful diabetic neuropathy. There are currently no FDA-approved disease-modifying treatments for diabetic neuropathy which has been attributed to inappropriate models of the disease with limited translational capacity and major limitations of trial designs and endpoints in clinical trials.
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Affiliation(s)
- Shazli Azmi
- Institute of Cardiovascular Science, University of Manchester and Manchester NHS Foundation Trust , Manchester, UK
| | - Uazman Alam
- Division of Diabetes, Endocrinology and Gastroenterology, Institute of Human Development, University of Manchester , Manchester, UK.,Department of Cardiovascular & Metabolic Medicine, Institute of Life Course and Medical Sciences, University of Liverpool , Liverpool, UK.,Department of Diabetes and Endocrinology, Liverpool University Hospital NHS Foundation Trust , Liverpool, UK
| | - Jamie Burgess
- Department of Cardiovascular & Metabolic Medicine, Institute of Life Course and Medical Sciences, University of Liverpool , Liverpool, UK
| | - Rayaz A Malik
- Department of Medicine, Weill Cornell Medicine-Qatar , Doha, Qatar
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25
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Katsimardou A, Imprialos K, Stavropoulos K, Sachinidis A, Doumas M, Athyros VG. Treatment strategies for hypertension in patients with type 1 diabetes. Expert Opin Pharmacother 2020; 21:1241-1252. [PMID: 32066278 DOI: 10.1080/14656566.2020.1729124] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 02/10/2020] [Indexed: 12/29/2022]
Abstract
INTRODUCTION Type 1 diabetes mellitus (T1DM) is a chronic, autoimmune disease that is characterized by total absence of insulin production. Hypertension is a common comorbidity in T1DM with complex pathophysiology, while it is also a well-recognized risk factor for the development of cardiovascular disease (CVD), as well as other microvascular diabetic complications. AREAS COVERED The purpose of this review is to present the current definitions, epidemiological data and prevalence rates of hypertension in T1DM, as well as to describe current therapeutic options. EXPERT OPINION Hypertension affects around a third of the type 1 diabetic population, with higher prevalence rates in older individuals with longer disease duration. Although hypertension affects a substantial proportion of T1DM individuals, blood pressure control rates are disappointingly low. Alongside lifestyle modification, antihypertensive treatment should be initiated in those with blood pressure above 140/90 mmHg, with a systolic blood pressure target of 130 mmHg and lower, if tolerated. In those with established CVD or diabetic nephropathy, systolic blood pressure targets below 130 mmHg should be pursued. Initial pharmacotherapy should consist of a renin-angiotensin-aldosterone system inhibitor. There is an urgent need for good quality data regarding proper antihypertensive treatment initiation, optimal BP targets and optimal antihypertensive treatment for better clinical outcomes.
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Affiliation(s)
| | | | | | | | - Michalis Doumas
- Department of Internal Medicine, Aristotle University , Thessaloniki, Greece
| | - Vasilios G Athyros
- Department of Internal Medicine, Aristotle University , Thessaloniki, Greece
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Ang L, Dillon B, Mizokami-Stout K, Pop-Busui R. Cardiovascular autonomic neuropathy: A silent killer with long reach. Auton Neurosci 2020; 225:102646. [PMID: 32106052 DOI: 10.1016/j.autneu.2020.102646] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/30/2020] [Accepted: 02/11/2020] [Indexed: 02/07/2023]
Abstract
Cardiovascular autonomic neuropathy (CAN) is a common and deadly complication of diabetes mellitus, which is frequently overlooked in clinical practice due to its characteristic subtle presentation earlier in disease. Yet, timely detection of CAN may help implementation of tailored interventions to prevent its progression and mitigate the risk of associated complications, including cardiovascular disease (CVD), cardiac arrhythmias, myocardial dysfunction leading to congestive heart failure and all-cause mortality. This review highlights current CAN epidemiology trends, novel mechanisms linking CAN with other diabetes complications and current recommendations for diagnosis and management of the disease in the clinical setting.
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Affiliation(s)
- Lynn Ang
- Division of Metabolism, Endocrinology, and Diabetes, University of Michigan, Ann Arbor, MI, United States of America
| | - Brendan Dillon
- University of Michigan Medical School, Ann Arbor, MI, United States of America
| | - Kara Mizokami-Stout
- Division of Metabolism, Endocrinology, and Diabetes, University of Michigan, Ann Arbor, MI, United States of America
| | - Rodica Pop-Busui
- Division of Metabolism, Endocrinology, and Diabetes, University of Michigan, Ann Arbor, MI, United States of America.
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Migisha R, Agaba DC, Katamba G, Kwaga T, Tumwesigye R, Miranda SL, Muyingo A, Siedner MJ. Prevalence and Correlates of Cardiovascular Autonomic Neuropathy Among Patients with Diabetes in Uganda: A Hospital-Based Cross-sectional Study. Glob Heart 2020; 15:21. [PMID: 32489794 PMCID: PMC7218768 DOI: 10.5334/gh.765] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Accepted: 01/28/2020] [Indexed: 02/08/2023] Open
Abstract
Background Cardiovascular autonomic neuropathy (CAN) is a common complication in individuals with diabetes mellitus (DM) but often overlooked in clinical practice. The burden and correlates of CAN have not been extensively studied in low-income countries, particularly in sub-Saharan Africa. Objectives To determine the prevalence and correlates of CAN among adults in ambulatory diabetes care in southwestern Uganda. Method We conducted a cross-sectional study among adults with diabetes from November 2018 to April 2019. CAN was assessed using the five autonomic function tests: deep breathing, Valsalva maneuver, postural index on standing, change in blood pressure during standing and diastolic blood pressure response to isometric exercise. We estimated the prevalence of CAN and fit regression models to identify its demographic and clinical correlates. Results We enrolled 299 individuals. The mean age was 50.1 years (SD ± 9.8), mean HbA1c was 9.7 (SD ± 2.6) and 69.6% were female. CAN was detected in 156/299 (52.2%) of the participants on the basis of one or more abnormal cardiovascular autonomic reflex tests. Out of 299 participants, 88 (29.4%) were classified as early CAN while 61/299 (20.4%) and 7/299 (2.3%) were classified as definite and severe (advanced) CAN respectively. In multivariable regression models, age over 50 years (aOR 3.48, 95%CI 1.35 -8.99, p = 0.010), duration of diabetes over 10 years (aOR 4.09, 95%CI 1.78 -9.38, p = 0.001), and presence of diabetic retinopathy (aOR 2.25, 95%CI 1.16 -4.34, p = 0.016) were correlated with CAN. Conclusions Our findings reveal a high prevalence of CAN among individuals in routine outpatient care for diabetes mellitus in Uganda. Older age, longer duration of diabetes and coexistence of retinopathy are associated with CAN. Future work should explore the clinical significance and long term outcomes associated with CAN in this region.
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Affiliation(s)
- Richard Migisha
- Department of Physiology, Mbarara University of Science and Technology, Mbarara, UG
| | - David Collins Agaba
- Department of Physiology, Mbarara University of Science and Technology, Mbarara, UG
| | - Godfrey Katamba
- Department of Physiology, St. Augustine International University, Kampala, UG
| | - Teddy Kwaga
- Department of Ophthalmology, Mbarara University of Science and Technology, Mbarara, UG
| | - Raymond Tumwesigye
- Department of Nursing, Mbarara University of Science and Technology, Mbarara, UG
| | - Silvia Lopez Miranda
- Department of Physiology, Mbarara University of Science and Technology, Mbarara, UG
| | - Anthony Muyingo
- Department of Internal Medicine, Mbarara University of Science and Technology, Mbarara, UG
| | - Mark J. Siedner
- Department of Internal Medicine, Mbarara University of Science and Technology, Mbarara, UG
- Department of Medicine, Massachusetts General Hospital, Boston, US
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Riguetto CM, Takano CR, Admoni SN, Parisi MCR, Giannella MLC, Pavin EJ, Moura Neto A. Identification and performance of multiple clinical and laboratorial risk factors for diagnosis of cardiac autonomic neuropathy in type 1 diabetes patients. J Diabetes Metab Disord 2019; 18:565-573. [PMID: 31890683 DOI: 10.1007/s40200-019-00467-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 11/05/2019] [Indexed: 01/05/2023]
Abstract
Purpose The incidence of cardiac autonomic neuropathy (CAN) in patients with type 1 diabetes (T1D) is frequently underestimated. Individuals with T1D and CAN have an increased mortality risk, mainly from cardiovascular causes. The objectives of the present study were to assess the clinical and laboratory characteristics associated with CAN in patients with T1D and verify the ability of multiple clinical factors to help identify patients with this condition. Methods 102 patients with T1D were evaluated for CAN using standardized cardiovascular reflex testing. Clinical characteristics were used to compute a numerical score for CAN diagnosis and a ROC curve elaborated for assessment of the best cutoff to predict CAN. This score was then applied to the second sample of 120 patients. The sensitivity, specificity, and positive and negative predictive values were calculated. Results Prevalence of CAN was around 35% in the first sample of patients and just below 20% in the second sample. Hypertension, total cholesterol, triglycerides, postprandial sweating, diastolic blood pressure, abnormal right and left 10 g monofilament, retinopathy, and nephropathy were considered independent predictors of CAN. The CAN-score cut-off was 16.88. This yielded a sensitivity of 50%, specificity 73.8%, positive predictive value 22.9%, and negative predictive value 90.5%. Conclusion The use of a subset of clinical and laboratory characteristics can be more accessible than the cardiac reflex tests and more accurate than a single isolated characteristic.
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Affiliation(s)
- Cinthia Minatel Riguetto
- 1Endocrinology Division, Internal Medicine Department, Faculty of Medical Sciences, University of Campinas, Rua Tessália Vieira de Camargo, 126 Campinas, São Paulo, 13084-971 Brazil
| | - Caroline Rigoleto Takano
- 1Endocrinology Division, Internal Medicine Department, Faculty of Medical Sciences, University of Campinas, Rua Tessália Vieira de Camargo, 126 Campinas, São Paulo, 13084-971 Brazil
| | - Sharon Nina Admoni
- 2Serviço de Endocrinologia e Metabologia do Hospital da Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, São Paulo Brazil
| | - Maria Candida Ribeiro Parisi
- 1Endocrinology Division, Internal Medicine Department, Faculty of Medical Sciences, University of Campinas, Rua Tessália Vieira de Camargo, 126 Campinas, São Paulo, 13084-971 Brazil
| | - Maria Lucia Correa Giannella
- 2Serviço de Endocrinologia e Metabologia do Hospital da Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, São Paulo Brazil
| | - Elizabeth João Pavin
- 1Endocrinology Division, Internal Medicine Department, Faculty of Medical Sciences, University of Campinas, Rua Tessália Vieira de Camargo, 126 Campinas, São Paulo, 13084-971 Brazil
| | - Arnaldo Moura Neto
- 1Endocrinology Division, Internal Medicine Department, Faculty of Medical Sciences, University of Campinas, Rua Tessália Vieira de Camargo, 126 Campinas, São Paulo, 13084-971 Brazil
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Pan Q, Li Q, Deng W, Zhao D, Qi L, Huang W, Ma L, Li H, Li Y, Lyu X, Wang A, Yao H, Guo L, Xing X. Prevalence and Diagnosis of Diabetic Cardiovascular Autonomic Neuropathy in Beijing, China: A Retrospective Multicenter Clinical Study. Front Neurosci 2019; 13:1144. [PMID: 31708736 PMCID: PMC6823192 DOI: 10.3389/fnins.2019.01144] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Accepted: 10/10/2019] [Indexed: 12/15/2022] Open
Abstract
Cardiovascular autonomic neuropathy (CAN) is a debilitating condition occurring among diabetic patients especially those with long duration of disease. Whereas incidences and treatment of CAN has been well described for Western populations, fewer studies have been conducted among the Chinese. This study, therefore, aimed to assess the prevalence of CAN among sampled Chinese diabetic patients. Accordingly, 2,048 participants with a history of type 1 diabetes mellitus (T1DM, 73) and type 2 diabetes mellitus (T2DM, 1975) were randomly sampled from 13 hospitals. Patients’ biodata were recorded, and autonomic nervous system function tests performed to aid in the preliminary diagnosis of CAN. The final CAN diagnosis was based on the Ewing’s test in which heart rate variation (HRV) values were evaluated through deep-breathing (DB), lying-to-standing (LS), and Valsalva (V) tests. Systolic blood pressure (SBP) variation values were also evaluated through LS. In the T1DM group, 61.6% patients were diagnosed with CAN and no differences were observed in the baseline and clinical data between this group and those without CAN (P > 0.05). In the T2DM group, 62.6% patients were diagnosed with CAN and statistically significant differences were found between the CAN and non- CAN group with regards to age, duration of diabetes, metformin treatment, retinopathy, and hypertension history (P < 0.05). The most common manifestations of CAN included weakness (28.6%), dizziness (23.4%), frequent urination (19.6%), upper body sweating (18.3%), and nocturia (15.9%). Additionally, duration of disease and age were independent risk factors for CAN in T1DM and T2DM, respectively. On diagnosis, a combination of the V test + LS test provided the highest sensitivity of detecting CAN among T1DM group (sensitivity = 97.6%, AUC = 0.887) while for T2DM category, DB test had the highest sensitivity (83.6%), and maximal AUC (0.856) was found with V test + DB test. The overall prevalence of diabetes with CAN in the study was up to 63%.
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Affiliation(s)
- Qi Pan
- Department of Endocrinology, National Center of Gerontology, Beijing Hospital, Beijing, China
| | - Quanmin Li
- The PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Wei Deng
- Department of Endocrinology, Beijing Jishuitan Hospital, Beijing, China
| | - Dong Zhao
- Center for Endocrine Metabolism and Immune Diseases, Luhe Hospital, Capital Medical University, Beijing, China
| | - Lin Qi
- Department of Endocrinology, Beijing Yanhua Hospital, Beijing, China
| | - Wei Huang
- Department of Endocrinology, Beijing Haidian Hospital, Beijing, China
| | - Li Ma
- South Section, Department of Endocrinology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Hongmei Li
- Department of Endocrinology, Emergency General Hospital, Beijing, China
| | - Yufeng Li
- Department of Endocrinology, Beijing Pinggu Hospital, Beijing, China
| | - Xiaofeng Lyu
- Department of Endocrinology, Seventh Medical Center of PLA General Hospital, Beijing, China
| | - Aihong Wang
- PLA Strategic Support Force Characteristic Medical Center, Beijing, China
| | - Hebin Yao
- Department of Endocrinology, Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Lixin Guo
- Department of Endocrinology, National Center of Gerontology, Beijing Hospital, Beijing, China
| | - Xiaoyan Xing
- Department of Endocrinology, China-Japan Friendship Hospital, Beijing, China
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30
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Kim HY, Jung HW, Lee YA, Shin CH, Yang SW. Cardiac autonomic neuropathy in nonobese young adults with type 1 diabetes. Ann Pediatr Endocrinol Metab 2019; 24:180-186. [PMID: 31607111 PMCID: PMC6790876 DOI: 10.6065/apem.2019.24.3.180] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 01/16/2019] [Indexed: 12/30/2022] Open
Abstract
PURPOSE The aim of this study was to evaluate the prevalence and risk factors for cardiac autonomic neuropathy (CAN) in nonobese nonobese young type 1 diabetes mellitus (T1DM) patients without micro- or macrovascular complications. METHODS CAN was assessed in 95 patients with T1DM, aged 18-29 years, using standard cardiovascular reflex tests - heart rate response to deep breathing, standing, and the Valsalva maneuver and blood pressure response to standing. Furthermore, power spectral analyses of overall heart rate variability (HRV), standard deviation of NN intervals (SDNN), and total power (TP) were tested with DiCAN. CAN was defined as abnormal results for at least 1 of the 4 cardiovascular reflex tests. RESULTS The prevalence of CAN was 12.6%. The frequency of one and 2 abnormal reflex tests was 10.5% and 2.1%, respectively. No significant differences were observed in age, sex, mean hemoglobin A1c (HbA1c) level, and duration of diabetes with respect to presence of CAN. Patients with CAN exhibited lower overall HRV parameters (SDNN and TP) compared with those without CAN even though there was no statistical significance. In multivariable analyses, higher mean HbA1c level was significantly associated with lower overall HRV (β=-44.42, P=0.002 for SDNN and β=-2.82, P<0.001 for TP). CONCLUSION CAN can be detected in 12.6% of young adult T1DM patients even without other micro- or macrovascular complications. Glycemic control is the main determinant to maintain overall HRV and prevent CAN.
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Affiliation(s)
- Hwa Young Kim
- Department of Pediatrics, Kangwon National University Hospital, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Hae Woon Jung
- Department of Pediatrics, Kyung Hee University Medical Center, Seoul, Korea
| | - Young Ah Lee
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea,Address for correspondence: Young Ah Lee, MD, PhD Division of Endocrinology and Metabolism, Department of Pediatrics, Seoul National University Children’s Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea Tel: +82-2-2072-2308 Fax: +82-2-743-3455 E-mail:
| | - Choong Ho Shin
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Sei Won Yang
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
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França da Silva AK, Destro Christofaro DG, Manata Vanzella L, Marques Vanderlei F, Lopez Laurino MJ, Marques Vanderlei LC. Relationship of the Aggregation of Cardiovascular Risk Factors in the Parasympathetic Modulation of Young People with Type 1 Diabetes. MEDICINA (KAUNAS, LITHUANIA) 2019; 55:E534. [PMID: 31454959 PMCID: PMC6780872 DOI: 10.3390/medicina55090534] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 08/20/2019] [Accepted: 08/21/2019] [Indexed: 11/20/2022]
Abstract
Background and objectives: In healthy individuals, autonomic alterations are associated with the aggregation of cardiovascular risk factors. However, in individuals with type 1 diabetes, who are known to present autonomic alterations, mainly characterized by a reduction in parasympathetic modulation, these associations have not yet been investigated. We assess whether the aggregation of cardiovascular risk factors influences parasympathetic indices of heart rate variability in young people with type 1 diabetes. Materials and methods: This cross-sectional study included 39 individuals with type 1 diabetes (22.54 ± 4.31), evaluated in relation to the risk factors: blood pressure, fat percentage, and resting heart rate. For heart rate variability analysis, heart rate was recorded beat-to-beat using a cardio frequency meter (PolarS810i) for 30 min with the volunteers in dorsal decubitus. The parasympathetic heart rate variability indices were calculated: rMSSD, pNN50, high frequency (HF) n.u (normalized units), SD1, 2LV, and 2ULV. Data collection was carried out in 2014 and analyzed in 2017. Results: Individuals with two aggregate risk factors present a reduction in the values of the indices that reflect parasympathetic autonomic modulation compared to individuals without the risk factors analyzed, regardless of sex and age. Conclusion: In young people with type 1 diabetes, the aggregation of cardiovascular risk factors is associated with parasympathetic autonomic impairment.
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Affiliation(s)
- Anne Kastelianne França da Silva
- Department of Physical Therapy, Faculty of Science and Technology, São Paulo State University (UNESP), Roberto Simonsen Street, 305, Presidente Prudente, São Paulo 19060-900, Brazil.
| | - Diego Giulliano Destro Christofaro
- Department of Physical Education, Faculty of Science and Technology, São Paulo State University (UNESP), Roberto Simonsen Street, 305, Presidente Prudente, São Paulo 19060-900, Brazil
| | - Laís Manata Vanzella
- Department of Physical Therapy, Faculty of Science and Technology, São Paulo State University (UNESP), Roberto Simonsen Street, 305, Presidente Prudente, São Paulo 19060-900, Brazil
| | - Franciele Marques Vanderlei
- Department of Physical Therapy, Faculty of Science and Technology, São Paulo State University (UNESP), Roberto Simonsen Street, 305, Presidente Prudente, São Paulo 19060-900, Brazil
| | - Maria Júlia Lopez Laurino
- Department of Physical Therapy, Faculty of Science and Technology, São Paulo State University (UNESP), Roberto Simonsen Street, 305, Presidente Prudente, São Paulo 19060-900, Brazil
| | - Luiz Carlos Marques Vanderlei
- Department of Physical Therapy, Faculty of Science and Technology, São Paulo State University (UNESP), Roberto Simonsen Street, 305, Presidente Prudente, São Paulo 19060-900, Brazil
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Herder C, Roden M, Ziegler D. Novel Insights into Sensorimotor and Cardiovascular Autonomic Neuropathy from Recent-Onset Diabetes and Population-Based Cohorts. Trends Endocrinol Metab 2019; 30:286-298. [PMID: 30935671 DOI: 10.1016/j.tem.2019.02.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/22/2019] [Accepted: 02/28/2019] [Indexed: 12/19/2022]
Abstract
The most prevalent chronic complications of diabetes are diabetic neuropathies, among which distal sensorimotor polyneuropathy (DSPN) and cardiovascular autonomic neuropathy (CAN) are the best studied. Their major clinical sequelae such as foot ulcers, neuropathic pain, and orthostatic hypotension are associated with lower quality of life and increased risk of mortality. Here we discuss the recent insights into DSPN and CAN focusing on two prospective cohorts; that is, the German Diabetes Study (GDS) including recent-onset diabetes patients and the population-based Cooperative Health Research in the Region of Augsburg, Germany (KORA) surveys. The insights from these studies investigating novel tools for early detection and prediction of (pre)diabetic neuropathy as well as biomarkers of oxidative stress and inflammation should ultimately culminate in improving the health care of patients affected by this serious condition.
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Affiliation(s)
- Christian Herder
- Institute of Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; German Center for Diabetes Research (DZD), Partner Düsseldorf, Düsseldorf, Germany; Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany; These authors contributed equally.
| | - Michael Roden
- Institute of Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; German Center for Diabetes Research (DZD), Partner Düsseldorf, Düsseldorf, Germany; Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Dan Ziegler
- Institute of Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; German Center for Diabetes Research (DZD), Partner Düsseldorf, Düsseldorf, Germany; Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany; These authors contributed equally.
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Pearce I, Simó R, Lövestam‐Adrian M, Wong DT, Evans M. Association between diabetic eye disease and other complications of diabetes: Implications for care. A systematic review. Diabetes Obes Metab 2019; 21:467-478. [PMID: 30280465 PMCID: PMC6667892 DOI: 10.1111/dom.13550] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 09/12/2018] [Accepted: 09/25/2018] [Indexed: 02/06/2023]
Abstract
The aim of this systematic review was to examine the associations between diabetic retinopathy (DR) and the common micro- and macrovascular complications of diabetes mellitus, and how these could potentially affect clinical practice. A structured search of the PubMed database identified studies of patients with diabetes that assessed the presence or development of DR in conjunction with other vascular complications of diabetes. From 70 included studies, we found that DR is consistently associated with other complications of diabetes, with the severity of DR linked to a higher risk of the presence of, or of developing, other micro- and macrovascular complications. In particular, DR increases the likelihood of having or developing nephropathy and is also a strong predictor of stroke and cardiovascular disease, and progression of DR significantly increases this risk. Proliferative DR is a strong risk factor for peripheral arterial disease, which carries a risk of lower extremity ulceration and amputation. Additionally, our findings suggest that a patient with DR has an overall worse prognosis than a patient without DR. In conclusion, this analysis highlights the need for a coordinated and collaborative approach to patient management. Given the widespread use of DR screening programmes that can be performed outside of an ophthalmology office, and the overall cost-effectiveness of DR screening, the presence and severity of DR can be a means of identifying patients at increased risk for micro- and macrovascular complications, enabling earlier detection, referral and intervention with the aim of reducing morbidity and mortality among patients with diabetes. Healthcare professionals involved in the management of diabetes should encourage regular DR screening.
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Affiliation(s)
- Ian Pearce
- St Paul's Eye UnitRoyal Liverpool University HospitalLiverpoolUK
| | - Rafael Simó
- Vall d'Hebron Research Institute (VHIR) and Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM)BarcelonaSpain
| | | | - David T. Wong
- St. Michael's Hospital, University of TorontoTorontoCanada
| | - Marc Evans
- University Hospital Llandough, LlandoughWalesUK
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Bhuyan AK, Baro A, Sarma D, Choudhury B. A Study of Cardiac Autonomic Neuropathy in Patients with Type 2 Diabetes Mellitus: A Northeast India Experience. Indian J Endocrinol Metab 2019; 23:246-250. [PMID: 31161112 PMCID: PMC6540895 DOI: 10.4103/ijem.ijem_336_18] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
AIM To investigate the prevalence and the risk factors for cardiac autonomic neuropathy (CAN) in type 2 diabetes mellitus (DM) patients. STUDY DESIGN Cross-sectional cohort study. PLACE AND DURATION OF STUDY This study was conducted in the Department of Endocrinology, Gauhati Medical College and Hospital, Assam, India between December 2016 to March 2018. METHODOLOGY We included 100 patients (60 males and 40 females; age range: 36-72 years) with type 2 DM. Their clinical, biochemical, and metabolic parameters were analyzed and assessment of CAN were done based on the Ewing's criteria. RESULTS Out of 100 patients, 60 were males and 40 were females. The mean age of the patients was 53.3 ± 10.37 years (36-72 years) and the mean duration of diabetes was 9.03 ± 6.4 years (6 months-25 years). Patients were divided into two groups: "without CAN" (CAN-) and "with CAN" (CAN+). The prevalence of CAN was 70%, with early CAN in 25%, definite CAN in 24%, and severe CAN in 21% cases The patients with CAN were older (P = 0.0005), had longer diabetes duration (11.56 vs. 3.13; P = 0.0001), higher creatinine (P < 0.0001), and lower estimated glomerular filtration rate (eGFR) (P = 0.0001) compared to patients without CAN. Retinopathy, peripheral neuropathy, and nephropathy were common in CAN + patients. On multiple logistic regression analysis, duration of diabetes [odds ratio (OR); 6.7, P < 0.0001), older age (OR; 1.07, P < 0.016), and lower eGFR (OR; 0.97, P < 0.03) were risk factors for CAN. CONCLUSION CAN is a common microvascular complication in type 2 DM with duration of diabetes, age, and severity of nephropathy being its significant determinants.
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Affiliation(s)
- Ashok K. Bhuyan
- Department of Endocrinology, Gauhati Medical College and Hospital, Guwahati, Assam, India
| | - Abhamoni Baro
- Department of Endocrinology, Gauhati Medical College and Hospital, Guwahati, Assam, India
| | - Dipti Sarma
- Department of Endocrinology, Gauhati Medical College and Hospital, Guwahati, Assam, India
| | - Bipul Choudhury
- Department of Endocrinology, Gauhati Medical College and Hospital, Guwahati, Assam, India
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Azmi S, Petropoulos IN, Ferdousi M, Ponirakis G, Alam U, Malik RA. An update on the diagnosis and treatment of diabetic somatic and autonomic neuropathy. F1000Res 2019; 8. [PMID: 30828432 PMCID: PMC6381801 DOI: 10.12688/f1000research.17118.1] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/07/2019] [Indexed: 12/30/2022] Open
Abstract
Diabetic peripheral neuropathy (DPN) is the most common chronic complication of diabetes. It poses a significant challenge for clinicians as it is often diagnosed late when patients present with advanced consequences such as foot ulceration. Autonomic neuropathy (AN) is also a frequent and under-diagnosed complication unless it is overtly symptomatic. Both somatic and autonomic neuropathy are associated with increased mortality. Multiple clinical trials have failed because of limited efficacy in advanced disease, inadequate trial duration, lack of effective surrogate end-points and a lack of deterioration in the placebo arm in clinical trials of DPN. Multifactorial risk factor reduction, targeting glycaemia, blood pressure and lipids can reduce the progression of DPN and AN. Treatment of painful DPN reduces painful symptoms by about 50% at best, but there is limited efficacy with any single agent. This reflects the complex aetiology of painful DPN and argues for improved clinical phenotyping with the use of targeted therapy, taking into account co-morbid conditions such as anxiety, depression and sleep disturbance.
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Affiliation(s)
- Shazli Azmi
- Institute of Cardiovascular Sciences, University of Manchester and Central Manchester NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK.,Manchester Diabetes Centre, Manchester University Foundation Trust, Manchester, UK
| | | | - Maryam Ferdousi
- Institute of Cardiovascular Sciences, University of Manchester and Central Manchester NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Georgios Ponirakis
- Weill Cornell Medicine-Qatar, Education City, Qatar Foundation, Doha, Qatar
| | - Uazman Alam
- Department of Eye and Vision Science, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, UK.,Department of Diabetes and Endocrinology, Royal Liverpool and Broadgreen University NHS Hospital Trust, Liverpool, UK
| | - Rayaz A Malik
- Institute of Cardiovascular Sciences, University of Manchester and Central Manchester NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK.,Weill Cornell Medicine-Qatar, Education City, Qatar Foundation, Doha, Qatar
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Abstract
Cardiovascular autonomic neuropathy (CAN) is a severely debilitating yet underdiagnosed condition in patients with diabetes. The prevalence can range from 2.5% (based on the primary prevention cohort in the Diabetes Control and Complications Trial) to as high as 90% of patients with type 1 diabetes. Clinical manifestations range from orthostasis to myocardial infarction. The diagnosis is made using multiple autonomic function tests to assess both sympathetic and parasympathetic function. The pathophysiology of CAN is complex, likely multifactorial, and not completely understood. Treatment is limited to symptomatic control of orthostatic hypotension, which is a late complication, and current strategies to reverse CAN are limited. This review explores the epidemiology, pathophysiology, clinical manifestations, diagnosis, and complications of CAN as well as current treatment options.
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37
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Weng AM, Wilimsky S, Bender G, Hahner S, Köstler H, Ritter CO. Magnetic resonance cold pressor test to investigate potential endothelial dysfunction in patients suffering from type 1 diabetes. J Magn Reson Imaging 2018; 48:1595-1601. [PMID: 29897641 DOI: 10.1002/jmri.26191] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 04/27/2018] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND In its course, diabetes impairs microvascular function through endothelial dysfunction. As the response of myocardial perfusion to sympathetic stimulation through cold is modulated by endothelium-related factors, an incipient endothelial dysfunction might be observed noninvasively by investigation of myocardial perfusion with a cold pressor test (CPT). This approach has been used in clinical MRI previously. PURPOSE To assess endothelial function of patients suffering from type 1 diabetes by MR CPT. STUDY TYPE Prospective cohort study. SUBJECTS Twenty type 1 diabetics and 20 healthy volunteers. FIELD STRENGTH/SEQUENCE 3T, dynamic contrast enhanced perfusion (steady-state free precession). ASSESSMENT Absolute quantitative myocardial perfusion values at rest and under CPT. STATISTICAL TESTS Kolmogorov-Smirnov test to determine normal distribution of the results. T-test for independent samples. RESULTS Patients' mean myocardial perfusion was 0.68 cc/g/min at rest and 0.80 cc/g/min during CPT, respective values of 0.81 cc/g/min and 1.36 cc/g/min were found in healthy volunteers. Perfusion values differed significantly for CPT (P < 0.01) but not for resting conditions (P = 0.06). DATA CONCLUSION This study demonstrated that endothelial function might be impaired in type 1 diabetes patients. This fosters the thesis that endothelial function may serve as an early biomarker for coronary artery disease in patients with type 1 diabetes while these patients are still clinically asymptomatic. LEVEL OF EVIDENCE 2 Technical Efficacy: Stage 3 J. Magn. Reson. Imaging 2018;48:1595-1601.
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Affiliation(s)
- Andreas M Weng
- Department of Diagnostic and Interventional Radiology, University Hospital of Würzburg, Germany
| | - Stefan Wilimsky
- Department of Diagnostic and Interventional Radiology, University Hospital of Würzburg, Germany.,Department of Diagnostic and Interventional Neuroradiology, University Hospital of Würzburg, Germany
| | - Gwendolyn Bender
- Department of Internal Medicine 1, University Hospital of Würzburg, Germany
| | - Stefanie Hahner
- Department of Internal Medicine 1, University Hospital of Würzburg, Germany
| | - Herbert Köstler
- Department of Diagnostic and Interventional Radiology, University Hospital of Würzburg, Germany
| | - Christian O Ritter
- Department of Diagnostic and Interventional Radiology, University Hospital of Würzburg, Germany.,Department of Diagnostic and Interventional Radiology, University Medicine Göttingen, Germany
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Jaiswal M, Divers J, Urbina EM, Dabelea D, Bell RA, Pettitt DJ, Imperatore G, Pihoker C, Dolan LM, Liese AD, Marcovina S, Linder B, Feldman EL, Pop-Busui R, for the SEARCH For Diabetes In Youth Study Group. Cardiovascular autonomic neuropathy in adolescents and young adults with type 1 and type 2 diabetes: The SEARCH for Diabetes in Youth Cohort Study. Pediatr Diabetes 2018; 19:680-689. [PMID: 29292558 PMCID: PMC5938122 DOI: 10.1111/pedi.12633] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 10/26/2017] [Accepted: 12/07/2017] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE To estimate the prevalence of and risk factors for cardiovascular autonomic neuropathy (CAN) in adolescents and young adults with type 1 and type 2 diabetes enrolled in the SEARCH for Diabetes in Youth Study. METHODS The study included 1646 subjects with type 1 diabetes (age 18 ± 4 years, diabetes duration 8 ± 2 years, HbA1c 9.1 ± 1.9%, 76% non-Hispanic Whites) and 252 with type 2 diabetes (age 22 ± 4 years, diabetes duration 8 ± 2 years, HbA1c 9.2 ± 3.0%, 45% non-Hispanic Blacks). Cross-sectional and longitudinal risk factors were assessed at baseline and follow-up visits. Area under the curve (AUC) was used to assess the longitudinal glycemic exposure and cardiovascular risk factors. CAN was assessed by time and frequency domain indices of heart rate variability (HRV). CAN was defined as the presence of ≥3 of 5 abnormal HRV indices. RESULTS The prevalence of CAN was 12% in adolescents and young adults with type 1 diabetes and 17% in those with type 2 diabetes. Poor long-term glycemic control (AUC HbA1c), high blood pressure, and elevated triglyceride levels were correlates of CAN in subjects with type 1 diabetes. In those with type 2 diabetes, CAN was associated with elevated triglycerides and increased urinary albumin excretion. CONCLUSIONS The prevalence of CAN in this multiethnic cohort of adolescents and young adults with type 1 and type 2 diabetes are comparable to those reported in adults with diabetes. Suboptimal glycemic control and elevated triglycerides were the modifiable risk factors associated with CAN.
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Affiliation(s)
- Mamta Jaiswal
- Department of Neurology, University of Michigan, Ann Arbor, Michigan
| | - Jasmin Divers
- Department of Biostatistical Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Elaine M. Urbina
- Preventive Cardiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
| | - Dana Dabelea
- Department of Epidemiology, Colorado School of Public Health, Aurora, Colorado
| | - Ronny A. Bell
- Department of Epidemiology and Prevention, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | | | - Giuseppina Imperatore
- Division of Diabetes Translation, Centers of Disease Control and Prevention, Atlanta, Georgia
| | - Catherine Pihoker
- Department of Pediatrics, University of Washington, Seattle Washington
| | - Lawrence M. Dolan
- Division of Endocrinology, Children’s Hospital Medical Center, Cincinnati, Ohio
| | - Angela D. Liese
- Department of Epidemiology and Biostatistics and Center for Research in Nutrition and Health Disparities, Arnold School of Public Health, University of South Carolina, South Carolina
| | - Santica Marcovina
- Northwest Lipid Research Laboratory, University of Washington, Seattle, Washington
| | - Barbara Linder
- Division of Diabetes, Endocrinology and Metabolic Diseases, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland
| | - Eva L. Feldman
- Department of Neurology, University of Michigan, Ann Arbor, Michigan
| | - Rodica Pop-Busui
- Division of Metabolism, Endocrinology and Diabetes, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
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Chung JO, Park SY, Han JH, Cho DH, Chung DJ, Chung MY. Serum apolipoprotein A-1 concentrations and the prevalence of cardiovascular autonomic neuropathy in individuals with type 2 diabetes. J Diabetes Complications 2018; 32:357-361. [PMID: 29453140 DOI: 10.1016/j.jdiacomp.2018.01.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 12/23/2017] [Accepted: 01/14/2018] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To evaluate the relationship between levels of serum apolipoproteins and the prevalence of cardiovascular autonomic neuropathy (CAN) in type 2 diabetes. METHODS In total, 3199 individuals with type 2 diabetes were investigated in a cross-sectional study. The diagnosis of CAN was made based on the results of a cardiovascular reflex test. Serum apolipoprotein A-I (apoA-I) and apolipoprotein B (apoB) levels were measured. RESULTS Serum apoA-1 levels were significantly low in individuals with CAN, but there was no significant association between serum apoB levels and CAN. According to the degree of cardiovascular autonomic dysfunction, the average apoA-I levels were significantly different after adjusting for other covariates (normal, 1.32 g/l, 95% confidence interval [CI] 1.30-1.35; early, 1.29 g/l, 95% CI 1.27-1.31; definite, 1.27 g/l, 95% CI 1.25-1.30; P for trend = 0.010). In the multivariable analysis, the statistically significant association between apoA-I and CAN remained after adjusting for the risk factors (odds ratio per standard deviation increase in the log-transformed value, 0.65; 95% CI, 0.43-0.97, P = 0.036). Additional adjustments for serum high-sensitivity C-reactive protein (or fibrinogen) concentrations eliminated this relationship. CONCLUSIONS Serum apoA-I levels are inversely associated with the prevalence of CAN in individuals with type 2 diabetes. Our data also suggest that a putatively increased risk of CAN associated with decreased apoA-I levels might be mediated by correlated increases in the levels of inflammatory markers.
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Affiliation(s)
- Jin Ook Chung
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chonnam National University Medical School, 8 Hak-Dong, Dong-Gu, Gwangju 501-757, Republic of Korea
| | - Seon-Young Park
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Chonnam National University Medical School, 8 Hak-Dong, Dong-Gu, Gwangju 501-757, Republic of Korea
| | - Ji Hyun Han
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chonnam National University Medical School, 8 Hak-Dong, Dong-Gu, Gwangju 501-757, Republic of Korea
| | - Dong Hyeok Cho
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chonnam National University Medical School, 8 Hak-Dong, Dong-Gu, Gwangju 501-757, Republic of Korea
| | - Dong Jin Chung
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chonnam National University Medical School, 8 Hak-Dong, Dong-Gu, Gwangju 501-757, Republic of Korea
| | - Min Young Chung
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chonnam National University Medical School, 8 Hak-Dong, Dong-Gu, Gwangju 501-757, Republic of Korea.
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Serhiyenko VA, Serhiyenko AA. Cardiac autonomic neuropathy: Risk factors, diagnosis and treatment. World J Diabetes 2018; 9:1-24. [PMID: 29359025 PMCID: PMC5763036 DOI: 10.4239/wjd.v9.i1.1] [Citation(s) in RCA: 124] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 12/09/2017] [Accepted: 12/29/2017] [Indexed: 02/06/2023] Open
Abstract
Cardiac autonomic neuropathy (CAN) is a serious complication of diabetes mellitus (DM) that is strongly associated with approximately five-fold increased risk of cardiovascular mortality. CAN manifests in a spectrum of things, ranging from resting tachycardia and fixed heart rate (HR) to development of "silent" myocardial infarction. Clinical correlates or risk markers for CAN are age, DM duration, glycemic control, hypertension, and dyslipidemia (DLP), development of other microvascular complications. Established risk factors for CAN are poor glycemic control in type 1 DM and a combination of hypertension, DLP, obesity, and unsatisfactory glycemic control in type 2 DM. Symptomatic manifestations of CAN include sinus tachycardia, exercise intolerance, orthostatic hypotension (OH), abnormal blood pressure (BP) regulation, dizziness, presyncope and syncope, intraoperative cardiovascular instability, asymptomatic myocardial ischemia and infarction. Methods of CAN assessment in clinical practice include assessment of symptoms and signs, cardiovascular reflex tests based on HR and BP, short-term electrocardiography (ECG), QT interval prolongation, HR variability (24 h, classic 24 h Holter ECG), ambulatory BP monitoring, HR turbulence, baroreflex sensitivity, muscle sympathetic nerve activity, catecholamine assessment and cardiovascular sympathetic tests, heart sympathetic imaging. Although it is common complication, the significance of CAN has not been fully appreciated and there are no unified treatment algorithms for today. Treatment is based on early diagnosis, life style changes, optimization of glycemic control and management of cardiovascular risk factors. Pathogenetic treatment of CAN includes: Balanced diet and physical activity; optimization of glycemic control; treatment of DLP; antioxidants, first of all α-lipoic acid (ALA), aldose reductase inhibitors, acetyl-L-carnitine; vitamins, first of all fat-soluble vitamin B1; correction of vascular endothelial dysfunction; prevention and treatment of thrombosis; in severe cases-treatment of OH. The promising methods include prescription of prostacyclin analogues, thromboxane A2 blockers and drugs that contribute into strengthening and/or normalization of Na+, K+-ATPase (phosphodiesterase inhibitor), ALA, dihomo-γ-linolenic acid (DGLA), ω-3 polyunsaturated fatty acids (ω-3 PUFAs), and the simultaneous prescription of ALA, ω-3 PUFAs and DGLA, but the future investigations are needed. Development of OH is associated with severe or advanced CAN and prescription of nonpharmacological and pharmacological, in the foreground midodrine and fludrocortisone acetate, treatment methods are necessary.
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Affiliation(s)
- Victoria A Serhiyenko
- Department of Endocrinology, Lviv National Medical University Named by Danylo Halitsky, Lviv 79010, Ukraine
| | - Alexandr A Serhiyenko
- Department of Endocrinology, Lviv National Medical University Named by Danylo Halitsky, Lviv 79010, Ukraine
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Ponte CMM, Fernandes VO, Gurgel MHC, Vasconcelos ITGF, Karbage LBDAS, Liberato CBR, Negrato CA, Gomes MDB, Montenegro APDR, Montenegro Júnior RM. Early commitment of cardiovascular autonomic modulation in Brazilian patients with congenital generalized lipodystrophy. BMC Cardiovasc Disord 2018; 18:6. [PMID: 29329523 PMCID: PMC5767058 DOI: 10.1186/s12872-017-0738-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 12/13/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Metabolic abnormalities in congenital generalized lipodystrophy (CGL) are associated with microvascular complications. However, the evaluation of different types of neuropathy in these patients, including the commitment of cardiovascular autonomic modulation, is scarce. The objective of the present study was to determine the prevalence of cardiovascular autonomic neuropathy (CAN) in patients with CGL compared with individuals with type 1 diabetes and healthy subjects. METHODS Ten patients with CGL, 20 patients with type 1 diabetes and 20 healthy subjects were included in the study. Controls were paired 1:2 for age, gender, BMI and pubertal stage. Heart rate variability (HRV) was analyzed using cardiovascular autonomic reflex tests, including postural hypotension test, Valsalva (VAL), respiratory (E/I) and orthostatic (30/15) coefficients, and spectral analysis of the HRV, determining very low (VLF), low (LF) and high (HF) frequencies components. The diagnosis of CAN was defined as the presence of at least two altered tests. RESULTS CAN was detected in 40% of the CGL patients, 5% in type 1 diabetes patients and was absent in healthy individuals (p < 0.05). We observed a significant reduction in the E/I, VLF, LF and HF in CGL cases vs. type 1 diabetes and healthy individuals and lower levels of 30/15 and VAL in CGL vs. healthy individuals. A significant positive correlation was observed between leptin and 30/15 coefficient (r = 0.396; p = 0.036) after adjusting for insulin resistance and triglycerides. Autonomic cardiovascular tests were associated with HbA1c, HOMA-IR, triglycerides and albumin/creatinine ratio in CGL cases. CONCLUSIONS We observed a high prevalence of CAN in young patients with CGL, suggesting that insulin resistance, hypertriglyceridemia and hypoleptinemia, may have been involved in early CAN development. Additional studies are needed to evaluate the role of leptinemia in the physiopathogenesis of the condition.
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Matta M, Pavy-Le Traon A, Perez-Lloret S, Laporte C, Berdugo I, Nasr N, Hanaire H, Senard JM. Predictors of Cardiovascular Autonomic Neuropathy Onset and Progression in a Cohort of Type 1 Diabetic Patients. J Diabetes Res 2018; 2018:5601351. [PMID: 29693021 PMCID: PMC5859848 DOI: 10.1155/2018/5601351] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 01/16/2018] [Accepted: 01/29/2018] [Indexed: 12/12/2022] Open
Abstract
AIM The prevalence of cardiovascular autonomic neuropathy (CAN) in diabetes mellitus is well documented. However, the rate and predictors of both the development and progression of CAN have been less studied. Hereby, we assessed the rate and the major risk factors for CAN initiation and progression in a cohort of type 1 diabetic patients followed over a three-year period. METHODS 175 type 1 diabetic patients (mean age: 50 ± 11 years; female/male: 76/99) with positive bedside screening for CAN were included and underwent 2 standardized autonomic testings using 4 standardized tests (deep breathing, Valsalva maneuver, 30/15 ratio, and changes in blood pressure during standing), separated by 3 ± 1 years. CAN staging was achieved according to the Toronto Consensus Panel on Diabetic Autonomic Neuropathy into 4 categories: absent, possible, confirmed, or severe CAN. RESULTS Out of the 175 patients included, 31.4% were free of CAN, 34.2% had possible CAN, 24.6% had confirmed CAN, and 9.7% exhibited severe CAN at the first assessment. Among the 103 patients with nonsevere CAN at inclusion, forty-one (39.8%) had an increase of at least one category when reassessed and 62 (60.2%) remained stable. A bivariate analysis indicated that only BMI and exposure to selective serotonin reuptake inhibitors (SSRIs) were significantly different in both groups. A multivariate analysis indicated that lower BMI (OR: 0.15, CI 95%: 0.05-0.48, p = 0.003) and SSRI exposure (OR: 4.18, CI 95%: 1.03-16.97, p = 0.04) were the sole predictors of CAN deterioration. In the 55 patients negative for CAN at the first laboratory assessment, 12 became positive at the second assessment. CONCLUSION No clear predictive factor for CAN onset was identified. However, once present, CAN progression was related to low BMI and SSRI exposure.
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Affiliation(s)
- M. Matta
- Service de Diabétologie et maladies métaboliques, CHU de Toulouse, 1 avenue Jean Poulhès, 31059 Toulouse Cedex 9, France
| | - A. Pavy-Le Traon
- Service de Neurologie, Hôpital Pierre-Paul Riquet, Place du Docteur Baylac-TSA 40031, 31059 Toulouse Cedex 9, France
- Institut des Maladies Métaboliques et Cardiovasculaires, INSERM, Université de Toulouse, 1 avenue Jean Poulhès, BP 84225, 31432 Toulouse Cedex 4, France
| | - S. Perez-Lloret
- Institute of Cardiology Research, University of Buenos Aires, National Research Council (CONICET-ININCA), Buenos Aires, Argentina
| | - C. Laporte
- Service de Diabétologie et maladies métaboliques, CHU de Toulouse, 1 avenue Jean Poulhès, 31059 Toulouse Cedex 9, France
| | - I. Berdugo
- Service de Diabétologie et maladies métaboliques, CHU de Toulouse, 1 avenue Jean Poulhès, 31059 Toulouse Cedex 9, France
| | - N. Nasr
- Service de Neurologie, Hôpital Pierre-Paul Riquet, Place du Docteur Baylac-TSA 40031, 31059 Toulouse Cedex 9, France
- Institut des Maladies Métaboliques et Cardiovasculaires, INSERM, Université de Toulouse, 1 avenue Jean Poulhès, BP 84225, 31432 Toulouse Cedex 4, France
| | - H. Hanaire
- Service de Diabétologie et maladies métaboliques, CHU de Toulouse, 1 avenue Jean Poulhès, 31059 Toulouse Cedex 9, France
| | - J. M. Senard
- Institut des Maladies Métaboliques et Cardiovasculaires, INSERM, Université de Toulouse, 1 avenue Jean Poulhès, BP 84225, 31432 Toulouse Cedex 4, France
- Service de Pharmacologie Clinique, Faculté de Médecine, CHU de Toulouse, 37 allées Jules Guesde, 31000 Toulouse, France
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Agiostratidou G, Anhalt H, Ball D, Blonde L, Gourgari E, Harriman KN, Kowalski AJ, Madden P, McAuliffe-Fogarty AH, McElwee-Malloy M, Peters A, Raman S, Reifschneider K, Rubin K, Weinzimer SA. Standardizing Clinically Meaningful Outcome Measures Beyond HbA 1c for Type 1 Diabetes: A Consensus Report of the American Association of Clinical Endocrinologists, the American Association of Diabetes Educators, the American Diabetes Association, the Endocrine Society, JDRF International, The Leona M. and Harry B. Helmsley Charitable Trust, the Pediatric Endocrine Society, and the T1D Exchange. Diabetes Care 2017; 40:1622-1630. [PMID: 29162582 PMCID: PMC5864122 DOI: 10.2337/dc17-1624] [Citation(s) in RCA: 290] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To identify and define clinically meaningful type 1 diabetes outcomes beyond hemoglobin A1c (HbA1c) based upon a review of the evidence, consensus from clinical experts, and input from researchers, people with type 1 diabetes, and industry. Priority outcomes include hypoglycemia, hyperglycemia, time in range, diabetic ketoacidosis (DKA), and patient-reported outcomes (PROs). While priority outcomes for type 1 and type 2 diabetes may overlap, type 1 diabetes was the focus of this work. RESEARCH AND METHODS A Steering Committee-comprising representatives from the American Association of Clinical Endocrinologists, the American Association of Diabetes Educators, the American Diabetes Association, the Endocrine Society, JDRF International, The Leona M. and Harry B. Helmsley Charitable Trust, the Pediatric Endocrine Society, and the T1D Exchange-was the decision-making body for the Type 1 Diabetes Outcomes Program. Their work was informed by input from researchers, industry, and people with diabetes through Advisory Committees representing each stakeholder group. Stakeholder surveys were used to identify priority outcomes. The outcomes prioritized in the surveys were hypoglycemia, hyperglycemia, time in range, DKA, and PROs. To develop consensus on the definitions of these outcomes, the Steering Committee relied on published evidence, their clinical expertise, and feedback from the Advisory Committees. RESULTS The Steering Committee developed definitions for hypoglycemia, hyperglycemia, time in range, and DKA in type 1 diabetes. The definitions reflect their assessment of the outcome's short- and long-term clinical impact on people with type 1 diabetes. Knowledge gaps to be addressed by future research were identified. The Steering Committee discussed PROs and concluded that further type 1 diabetes-specific development is needed. CONCLUSIONS The Steering Committee recommends use of the defined clinically meaningful outcomes beyond HbA1c in the research, development, and evaluation of type 1 diabetes therapies.
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Affiliation(s)
| | | | | | - Lawrence Blonde
- American Association of Clinical Endocrinologists, Jacksonville, FL
| | | | | | | | - Paul Madden
- American Diabetes Association, Arlington, VA
| | | | | | | | - Sripriya Raman
- American Association of Clinical Endocrinologists, Jacksonville, FL
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Sibiya N, Ngubane P, Mabandla M. Cardioprotective effects of pectin-insulin patch in streptozotocin-induced diabetic rats. J Diabetes 2017; 9:1073-1081. [PMID: 28220624 DOI: 10.1111/1753-0407.12538] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 01/16/2017] [Accepted: 02/14/2017] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Cardiovascular complications are among the leading causes of morbidity and mortality in diabetes mellitus. Despite the beneficial effects of subcutaneous insulin, reports suggest that the therapy itself precipitates cardiovascular risks due to the high insulin concentration administered. It is therefore necessary to seek alternative routes of insulin administration that may bypass the undesirable effects associated with high plasma insulin concentrations. Accordingly, the present study investigated the effects of a novel transdermal pectin-insulin patch on selected markers of cardiovascular function in diabetes. METHODS Pectin-insulin matrix patches (20.0, 40.8, and 82.9 μg/kg) were prepared as described previously. The three formulations were applied to streptozotocin-induced diabetic rats thrice daily. Blood glucose concentrations and mean arterial pressure (MAP) were monitored weekly for 5 weeks. Rats were then killed and blood collected for analysis of the lipid profile, cardiotropin-1, tumor necrosis factor (TNF)-α, and high-sensitivity C-reactive protein (hsCRP). RESULTS The patches decreased blood glucose concentrations and diabetes-induced disturbances in lipid profile were attenuated by patch application (82.9 μg/kg). The diabetes-induced increase in MAP was also attenuated in patch (82.9 μg/kg)-treated rats. Patch treatment resulted in a decreased heart weight: body weight ratio, as well as reductions in cardiotropin-1, TNF-α, and hsCRP concentrations. CONCLUSIONS Application of the pectin-insulin patch protects against the debilitating cardiovascular effects associated with conventional diabetes treatment. This suggests that the pectin-insulin patch may provide an effective alternative therapeutic approach to the commonly used subcutaneous insulin injections in the management of diabetes.
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Affiliation(s)
- Ntethelelo Sibiya
- Department of Human Physiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Phikelelani Ngubane
- Department of Human Physiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Musa Mabandla
- Department of Human Physiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
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Dimova R, Tankova T, Chakarova N. Vitamin D in the Spectrum of Prediabetes and Cardiovascular Autonomic Dysfunction. J Nutr 2017; 147:1607-1615. [PMID: 28768837 DOI: 10.3945/jn.117.250209] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 03/27/2017] [Accepted: 06/30/2017] [Indexed: 11/14/2022] Open
Abstract
Vitamin D is a fat-soluble secosteroid hormone with pleiotropic effects. 1,25-Dihydroxyvitamin D coordinates the biosynthesis of neurotransmitters in the central nervous system, which regulate cardiovascular autonomic function and may explain its putative role in the development of cardiovascular autonomic neuropathy (CAN). CAN is an independent risk factor for mortality in patients with diabetes and prediabetes and is associated with an increased risk of developing type 2 diabetes and cardiovascular disease. Accumulating data indicate the presence of peripheral nerve injury at these early stages of dysglycemia and its multifactorial pathogenesis. Prediabetes is associated with vitamin D insufficiency. Vitamin D is proposed to prevent the progression of glucose intolerance. The putative underlying mechanisms include maintenance of the intracellular calcium concentration, direct stimulation of insulin receptor expression, and enhancement of the insulin response to glucose transporters. Vitamin D exerts a protective effect on peripheral nerve fibers by decreasing the demyelination process and inducing axonal regeneration. The effects of vitamin D supplementation on glucose tolerance and related autonomic nerve dysfunction have been a recent focus of scientific interest. Although well-designed observational studies are available, the causative relation between vitamin D deficiency, glucose intolerance, and CAN is still debatable. One reason might be that interventional studies are unpersuasive with regard to the beneficial clinical effects of vitamin D supplementation. Because of its favorable side effect profile, vitamin D supplementation might represent an attractive therapeutic option for treating the pandemic prevalence of prediabetes and vitamin D deficiency. Vitamin D supplementation can improve glucose tolerance and cardiovascular autonomic function and can thus reduce cardiovascular mortality among subjects with different stages of glucose intolerance and autonomic dysfunction. However, more patient-centered trials on the use of vitamin D supplementation in different conditions are needed.
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Affiliation(s)
- Rumyana Dimova
- Department of Diabetology, Clinical Center of Endocrinology, Medical University, Sofia, Sofia, Bulgaria
| | - Tsvetalina Tankova
- Department of Diabetology, Clinical Center of Endocrinology, Medical University, Sofia, Sofia, Bulgaria
| | - Nevena Chakarova
- Department of Diabetology, Clinical Center of Endocrinology, Medical University, Sofia, Sofia, Bulgaria
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Németh N, Putz Z, Istenes I, Körei AE, Vági OE, Kempler M, Gandhi R, Jermendy G, Tesfaye S, Tabák ÁG, Kempler P. Is there a connection between postprandial hyperglycemia and IGT related sensory nerve dysfunction? Nutr Metab Cardiovasc Dis 2017; 27:609-614. [PMID: 28676377 DOI: 10.1016/j.numecd.2017.05.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Revised: 05/03/2017] [Accepted: 05/04/2017] [Indexed: 01/24/2023]
Abstract
BACKGROUND AND AIMS To assess the risk factors for sensory nerve dysfunction in subjects with isolated impaired glucose tolerance (IGT). METHODS AND RESULTS Seventy-two people with isolated IGT (WHO 1999 criteria) and 39 gender and age-matched healthy volunteers underwent detailed clinical and neurological assessment including quantitative sensory testing using the Neurometer device (current perception threshold measurement on four limbs at three different frequencies). Sensory nerve dysfunction was defined as at least two abnormalities on any frequencies on the upper or lower limbs. Sensory nerve dysfunction was more prevalent among subjects with IGT compared to controls (58.3 vs. 10.3%, OR: 11.23, 95%CI: 3.57-35.35). This association was not influenced by BMI, systolic and diastolic blood pressure, heart rate and autonomic neuropathy (multiple adjusted OR: 13.87, 95%CI: 3.18-60.58), but further adjustment for glycaemic measures abolished the association (OR: 1.58, 95%CI: 0.07-35.68). Assessing the components of glycaemic measures separately, the association between sensory nerve dysfunction and IGT was not affected by HbA1c (OR: 13.94, 95%CI: 1.84-105.5). It was, however, substantially attenuated by fasting plasma glucose (OR: 6.75, 95%CI: 1.33-34.27) while the significance was lost after adjustment for 120 min postload glucose level (OR: 3.76, 95%CI: 0.26-54.10). In the pooled population assessed, independent determinants of sensory nerve dysfunction were older age, 120 min glucose, higher height and cardiovascular autonomic neuropathy at near significance. CONCLUSIONS Sensory nerve dysfunction amongst subjects with IGT was not explained by cardiovascular covariates, only by glycaemic measures. In addition to 120 min glucose, cardiovascular autonomic neuropathy at borderline significance, age, and height were the independent determinants of sensory nerve dysfunction.
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Affiliation(s)
- N Németh
- 1st Department of Internal Medicine, Semmelweis University, Budapest, Hungary.
| | - Z Putz
- 1st Department of Internal Medicine, Semmelweis University, Budapest, Hungary
| | - I Istenes
- 1st Department of Internal Medicine, Semmelweis University, Budapest, Hungary
| | - A E Körei
- 1st Department of Internal Medicine, Semmelweis University, Budapest, Hungary
| | - O E Vági
- 1st Department of Internal Medicine, Semmelweis University, Budapest, Hungary
| | - M Kempler
- 1st Department of Internal Medicine, Semmelweis University, Budapest, Hungary; 3rd Department of Internal Medicine, Semmelweis University, Budapest, Hungary
| | - R Gandhi
- Royal Hallamshire Hospital, Sheffield, UK
| | - G Jermendy
- 3rd Department of Internal Medicine, Bajcsy-Zsilinszky Hospital, Budapest, Hungary
| | - S Tesfaye
- Royal Hallamshire Hospital, Sheffield, UK
| | - Á G Tabák
- 1st Department of Internal Medicine, Semmelweis University, Budapest, Hungary; Department of Epidemiology and Public Health, University College London, London, UK
| | - P Kempler
- 1st Department of Internal Medicine, Semmelweis University, Budapest, Hungary
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Menon AS, Dixit A, Garg MK, Girish R. Cardiac Autonomic Neuropathy in Patients with Type 2 Diabetes Mellitus at High Risk for Foot Ulcers. Indian J Endocrinol Metab 2017; 21:282-285. [PMID: 28459026 PMCID: PMC5367231 DOI: 10.4103/ijem.ijem_542_16] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
AIM To study the prevalence of cardiac autonomic neuropathy (CAN) in patients with Type 2 diabetes mellitus at high risk for foot ulcers. MATERIALS AND METHODS We screened patients attending diabetic clinic for identifying patients at high risk for foot ulcers. Those with foot risk category 1, 2 and 3 as per criteria of Foot Care Interest Group were subjected to battery of cardiovascular autonomic reflex tests. Those with one abnormal test were termed as probable CAN and those with two abnormal tests as definite CAN. Those with postural fall in blood pressure with one other abnormal test were termed to have advanced CAN. RESULTS A total of 74 patients were recruited in the study. The prevalence of abnormal cardiovascular autonomic reflex test was sustained hand grip 81%, E/I ratio 66.2%, 30:15 ratio 28.3% and orthostatic hypotension 13.5%. The prevalence of possible CAN was 31.0% (23/74) and definite CAN was 66.2% (49/74). Ten patients had advanced CAN. There was no observable difference in presence of probable or definite CAN in three risk category for foot ulcers. CONCLUSION We found a high prevalence of CAN in subgroup of diabetic patients at increased risk for foot ulcer.
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Affiliation(s)
- Anil S. Menon
- Department of Endocrinology, Command Hospital, Lucknow, Uttar Pradesh, India
| | - Abhinav Dixit
- Department of Endocrinology, Command Hospital, Lucknow, Uttar Pradesh, India
| | - M. K. Garg
- Department of Endocrinology, Command Hospital, Lucknow, Uttar Pradesh, India
| | - R. Girish
- Department of Cardiology, Command Hospital, Lucknow, Uttar Pradesh, India
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Fisher VL, Tahrani AA. Cardiac autonomic neuropathy in patients with diabetes mellitus: current perspectives. Diabetes Metab Syndr Obes 2017; 10:419-434. [PMID: 29062239 PMCID: PMC5638575 DOI: 10.2147/dmso.s129797] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Cardiac autonomic neuropathy (CAN) is a common and often-underdiagnosed complication of diabetes mellitus (DM). CAN is associated with increased mortality, cardiovascular disease, chronic kidney disease, and morbidity in patients with DM, but despite these significant consequences CAN often remains undiagnosed for a prolonged period. This is commonly due to the disease being asymptomatic until the later stages, as well as a lack of easily available screening strategies. In this article, we review the latest developments in the epidemiology, pathogenesis, diagnosis, consequences, and treatments of CAN in patients with DM.
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Affiliation(s)
| | - Abd A Tahrani
- Institute of Metabolism and Systems Research, University of Birmingham
- Department of Diabetes and Endocrinology, Birmingham Heartlands Hospital
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
- Correspondence: Abd A Tahrani, Institute of Metabolism and Systems Research, Medical School, University of Birmingham, Birmingham B15 2TT, UK, Email
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Wang D, Shen B, Wu C, Xue Y, Liu Y. The Relationship between Cardiovascular Autonomic Dysfunction and Ocular Abnormality in Chinese T2DM. J Diabetes Res 2017; 2017:7125760. [PMID: 28656153 PMCID: PMC5471552 DOI: 10.1155/2017/7125760] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 02/14/2017] [Accepted: 03/26/2017] [Indexed: 01/16/2023] Open
Abstract
OBJECTIVE This study aims to explore the relationship between autonomic nerve dysfunction-assessed by cardiovascular autonomic neuropathy risk score (CAN-RS)-and ocular abnormality in Chinese type 2 diabetes mellitus (T2DM). METHOD This is a cross-sectional study. A total of 335 subjects with T2DM were enrolled. The state of visual acuity, the lens, the vitreous, and the fundus were tested by professional ophthalmic instruments. The electrochemical skin conductance (ESC) of the hands and feet was measured by SUDOSCAN, from which a cardiovascular autonomic neuropathy risk score (CAN-RS) was calculated. Receiver operating characteristic (ROC) curves were drawn to evaluate the feasibility and accuracy of CAN-RS in diabetic oculopathy screening. RESULTS Abnormalities of the lens, vitreous, and fundus accounted for 7.8%, 5.1%, and 9.9%, respectively, in this study. The means of hands and feet ESC were higher than 60 μS, and CAN-RS was 33.1 ± 14.8%. In logistic regression analysis, CAN-RS was positively associated with lens (OR = 1.055, P < 0.001) and vitreous (OR = 1.044, P < 0.01) abnormality. The area under ROC to detect lens and vitreous abnormality was 0.713 and 0.725, respectively. CONCLUSION CAN-RS, a cardiac autonomic nerve dysfunction index calculated by SUDOSCAN, may be a promising index for lens and vitreous abnormality screening in T2DM patients. Further studies are needed to confirm the conclusion.
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Affiliation(s)
- Dandan Wang
- Department of Endocrinology, The 306th Teaching Hospital of People's Liberation Army, Peking University, Beijing, China
| | - Baiyu Shen
- Department of Endocrinology, The 306th Teaching Hospital of People's Liberation Army, Peking University, Beijing, China
| | - Chunrong Wu
- Department of Endocrinology, The 306th Hospital of People's Liberation Army, Beijing, China
| | - Yanyan Xue
- Department of Endocrinology, The 306th Hospital of People's Liberation Army, Beijing, China
| | - Yanjun Liu
- Department of Endocrinology, The 306th Teaching Hospital of People's Liberation Army, Peking University, Beijing, China
- Department of Endocrinology, The 306th Hospital of People's Liberation Army, Beijing, China
- *Yanjun Liu:
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Dafaalla MD, Nimir MN, Mohammed MI, Ali OA, Hussein A. Risk factors of diabetic cardiac autonomic neuropathy in patients with type 1 diabetes mellitus: a meta-analysis. Open Heart 2016; 3:e000336. [PMID: 27843562 PMCID: PMC5073521 DOI: 10.1136/openhrt-2015-000336] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Revised: 04/25/2016] [Accepted: 06/30/2016] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES We aimed to stratify the possible risk factors for diabetic cardiac autonomic neuropathy (CAN). METHODS We did a meta-analysis of risk factors of CAN. We did a web-based search for literature in MEDLINE/PubMed, Scopus database and CENTRAL database up to August 2015. We included clinical trials or cohort studies that provide data about relationship between CAN and variables of interest. Our risk factors of interest were age, sex, duration of diabetes, body mass index (BMI), systolic blood pressure (sBP) and diastolic blood pressure (dBP), glycated haemoglobin (HbA1c), high-density lipoprotein and low-density lipoprotein (HDL and LDL), triglycerides, retinopathy and nephropathy. We generated Forest plots, χ2 test and I2 as tests for heterogeneity, risk ratio (RR), mean difference (MD), CIs and p values by ReVMan V.5.3 software. RESULTS We found a total of 882 related items. We excluded 873 studies from the title and abstract and 4 studies after review of full reports. Four studies were included. Our meta-analysis showed significant association between CAN and age (MD=4.94 (3.46 to 6.42)), duration of diabetes (MD=4.51 (2.51 to 6.52)), HbA1c (MD=0.48 (0.28 to 0.67)), BMI (MD=0.55 (0.08 to 1.01)), serum triglycerides (MD=0.09 (0.01 to 0.17)), proliferative retinopathy (RR=3.69 (1.20 to 11.34)), microalbuminuria (RR=2.47 (1.43 to 4.29)), hypertension (RR=4.18 (2.52 to 6.91)) and sBP (MD=4.10 (2.20 to 6.00)). We neither discovered the absence of significant association between the development of CAN and male sex (RR=1.57 (0.45 to 5.39)), dBP (MD=0.89 (-0.36 to 2.14)), cholesterol level (MD=1.19 (-0.99 to 3.36)), LDL (MD=0.12 (-0.15 to 0.39)), nor HDL level (MD=-0.28 (-0.58 to 0.03)). CONCLUSIONS Age, duration of diabetes, HbA1c, BMI, serum triglycerides, proliferative retinopathy, microalbuminuria, hypertension and sBP are directly related to the risk of development of diabetic CAN.
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Affiliation(s)
- Mohamed D Dafaalla
- Soba Center for Audit and Research (SCAR), University of Khartoum , Khartoum , Sudan
| | | | | | - Omer A Ali
- Daoud Research Group, University of Khartoum , Khartoum , Sudan
| | - Abbashar Hussein
- Faculty of Medicine, Daoud Research Group , University of Khartoum , Khartoum , Sudan
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